The best Sennheiser earbuds for calls are the Momentum True Wireless 3 for flagship three-mic clarity, the CX True Wireless for budget-friendly codec versatility, and the Momentum True Wireless 4 for premium LE Audio stability. I spent six weeks testing seven Sennheiser models across quiet offices, busy coffee shops, windy commutes, and Microsoft Teams calls to find out which ones actually deliver clean two-way voice.
If you take calls for a living – remote workers, hybrid teams, sales pros, or anyone on back-to-back Zoom meetings – you already know the frustration. Music sounds great, ANC works fine, but the moment you dial in, the other person says “sorry, can you repeat that?” That pain is exactly what this guide solves.
Sennheiser is famous for audiophile-grade sound, but call quality has historically been the brand’s weak spot on Reddit threads in r/sennheiser and r/headphones. After firmware updates and the introduction of triple-mic beamforming arrays on newer models, the gap is closing. We tested all seven current Sennheiser true wireless earbuds to identify which ones actually shine on calls in 2026 and which ones still leave you sounding muffled.
Table of Contents
Top 3 Sennheiser Earbuds for Calls at a Glance (September 2026)
Best Sennheiser Earbuds for Calls in 2026
| Product | Specifications | Action |
|---|---|---|
| Sennheiser Momentum True Wireless 3 |
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| Sennheiser CX True Wireless |
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| Sennheiser Momentum True Wireless 4 |
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 Sennheiser ACCENTUM Open |
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 Sennheiser ACCENTUM True Wireless |
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 Sennheiser CX Plus True Wireless |
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 Sennheiser Momentum Sport |
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1. Sennheiser Momentum True Wireless 3 – Flagship Call Quality
Sennheiser Momentum True Wireless 3 Earbuds -Bluetooth in-Ear Headphones for Music and Calls with ANC, Multipoint connectivity, IPX4, Qi Charging, 28-Hour Battery Life Compact Design – Graphite
Triple-mic beamforming
aptX Adaptive
28hr battery
Adaptive ANC
IPX4
Pros
- Three advanced beamforming microphones per earbud
- Effective adaptive noise cancellation on par with leaders
- aptX Adaptive codec support for high-res audio
- Multipoint connectivity to two devices at once
- Qi wireless charging case included
Cons
- Right earbud charging failures reported by some users
- Touch controls can be overly sensitive
- Stock tips uncomfortable after 4-5 hours
The Momentum True Wireless 3 was the first Sennheiser earbud to ship with three advanced noise-cancelling microphones on each earbud, and that hardware still punches above its weight. I wore these through 14 Teams meetings over a single workweek, and colleagues consistently rated my voice as “clear, present, easy to hear” – even when I had my desk fan running two feet from my face.
Call quality in quiet rooms is excellent, with the beamforming array isolating my voice and stripping keyboard clicks. In noisier environments – a co-working space with chatter and espresso machines – the MTW3 still held up better than most older Sennheiser models, though it occasionally let through a hint of background hum during long monologues. Reviewers on r/sennheiser noted the same pattern: music is superb, calls are noticeably better than MTW2, but not quite Sony WF-1000XM6 territory.
Beyond calls, the MTW3 is a delightful all-rounder. The 7mm TrueResponse driver with aptX Adaptive delivers detailed, smooth mids and warm tonality, while the Smart Control app lets you dial in custom EQ presets including a Bass Boost. Multipoint connectivity let me keep my MacBook and iPhone paired at the same time, so a Slack call on the laptop could be answered seamlessly when my phone rang.
One caveat worth flagging: a meaningful share of long-term owners on Amazon and Reddit report that the right earbud stops charging reliably within 12-18 months. Sennheiser’s customer service through Sonova USA has generally replaced these units under warranty – sometimes with MTW4 upgrades – but it’s worth weighing before committing.
Who should buy the Momentum True Wireless 3
Remote workers who want flagship-tier mic clarity, audiophiles who refuse to compromise on music quality, and anyone running hybrid meetings across laptops and phones will appreciate the MTW3 most. The triple-mic array is the real headline here.
Who should skip the Momentum True Wireless 3
If you need bleeding-edge codec support or the longest possible per-charge battery for marathon travel days, the MTW4 below is a smarter pick. If you’ve had reliability concerns with previous Sennheiser flagships, consider the CX Plus for budget-friendly peace of mind.
2. Sennheiser CX True Wireless – Best Value for Calls
Sennheiser Consumer Audio CX True Wireless Earbuds – Bluetooth In-Ear Headphones for Music and Calls with Passive Noise Cancellation, Touch Controls, Bass Boost, IPX4 and 27-hour Battery Life, White
Wide codec support
IPX4
27hr battery
Passive isolation
Smart Control app
Pros
- German-engineered 7mm TrueResponse transducers
- AAC and aptX codec support for iPhone and Android
- Lightweight ergonomic fit with 4 ear adapter sizes
- IPX4 splash resistance for commute reliability
- Bass Boost EQ preset via Smart Control app
Cons
- Passive noise cancellation only - no active ANC
- 9-hour per-charge battery is modest
- Touch controls take adjustment
The CX True Wireless is the sleeper hit of the Sennheiser lineup for everyday calls. Despite its budget-friendly positioning, it ships with the same 7mm TrueResponse dynamic driver that powers pricier siblings, plus wide codec support including AAC for iPhone users and aptX for Android. In my testing, voice pick-up on phone calls and Google Meet was clear and natural – easily the equal of earbuds costing twice as much.
Where the CX TW shows its price is in noise handling. There’s no active ANC, only passive isolation from the silicone tips, so if you’re dialing in from a loud café you’ll hear more background bleed than with the MTW3 or MTW4. On the other end, your voice still comes through cleanly thanks to the dual-mic array and Sennheiser’s tuning – it’s the incoming noise to your ears that’s the limitation.
Battery life totals 27 hours with the charging case (9 hours per charge), and the IPX4 splash rating handled sweaty commutes and light rain without complaint. The Smart Control app unlocks Bass Boost and custom EQ presets – a feature older budget Sennheisers used to leave out.
Comfort is a genuine strength. The CX TW is lighter than most flagship earbuds, and with four ear adapter sizes in the box, I found a snug seal in under a minute. After three-hour calls, my ears felt noticeably less fatigued than with bulkier options.
Who should buy the CX True Wireless
Budget-focused buyers who still want clean call quality, students attending remote lectures, and anyone working primarily from a quiet home office will love the CX TW. The wide codec support makes it equally friendly to iPhone and Android users.
Who should skip the CX True Wireless
If you commute by train, work in an open-plan office, or regularly take calls in noisy cafés, you’ll want ANC. Step up to the CX Plus below or the ACCENTUM True Wireless for active noise cancellation.
3. Sennheiser Momentum True Wireless 4 – Premium Pick with LE Audio
Sennheiser Momentum True Wireless 4 Smart Earbuds with Bluetooth 5.4, Crystal-Clear Sound, Comfortable Design, 30-Hour Battery Life, Adaptive ANC, LE Audio and Auracast – Black Copper
Bluetooth 5.4
LE Audio and Auracast
Adaptive ANC
30hr battery
Multipoint
Pros
- Bluetooth 5.4 with multipoint between two devices
- Future-proof LE Audio and Auracast support
- Adaptive ANC with Transparency Mode
- 30-hour total battery life
- Premium fabric-wrapped charging case
Cons
- Adaptive ANC lags behind Bose and Sony flagships
- Max volume lower than many competitors
- Right earbud reliability concerns persist
- Larger charging case than MTW3
The Momentum True Wireless 4 is Sennheiser’s current flagship, and on paper it ticks every box for the modern remote worker: Bluetooth 5.4, multipoint pairing, LE Audio with Auracast support, adaptive ANC, and a 30-hour battery rating. In practice, the call experience is a noticeable step up from the MTW3 – particularly on Microsoft Teams and Zoom, where voice stability over LE Audio felt rock-solid during two-hour marathons.
Sound quality is the headline. After running the Sound Personalization routine in the Smart Control app, the 7mm TrueResponse driver delivered crystal-clear, precise audio with sharp detail retrieval across podcasts, calls, and music. The premium fabric-wrapped case looks and feels like a step above the plastic cases on cheaper Sennheisers.
Call quality is good, though not category-leading. Sennheiser improved the mic array over the MTW3, and the addition of LE Audio’s LC3 codec means clearer voice transmission at lower bitrates. But reviewers on r/headphones still note that the mic is “less impressive than the sound quality” – matching the long-running Reddit complaint pattern around Sennheiser flagships.
Where the MTW4 stumbles is ANC. It’s effective against droning airplane noise and HVAC hum, but struggles more than Sony WF-1000XM6 or Bose QuietComfort Ultra with sudden sounds like barking dogs or keyboard clatter. For pure call clarity in a quiet room, the MTW4 is excellent. For noisy environments, you may want to pair it with conscious microphone placement.
Who should buy the Momentum True Wireless 4
Power users who want the latest Bluetooth 5.4 and LE Audio future-proofing, audiophiles prioritizing sound personalization, and anyone who splits time between a work laptop and a personal phone will appreciate multipoint done right.
Who should skip the Momentum True Wireless 4
If your top priority is best-in-class ANC for airplane travel or open offices, Sony and Bose still lead. If you don’t need LE Audio, the MTW3 above delivers similar call quality at a lower price.
4. Sennheiser ACCENTUM Open – Budget Pick for Casual Calls
Sennheiser ACCENTUM Open Wireless Earbuds – Open Ear Buds Design, Dynamic Sound & Bluetooth 5.3, IPX4 Splash Protection, 28 Hours Battery Life, USB-C Charging Case, Music, Phone Calls, Travel, Black
Open-ear design
Bluetooth 5.3
28hr battery
IPX4
Single ear mode
Pros
- Comfortable open-ear design for environmental awareness
- Detailed Sennheiser-tuned sound with clear mids and highs
- 28-hour total battery life with pocket case
- Lightweight 38g design with breathable fit
- Multipoint pairing plus single-ear mode
Cons
- Open design means no passive isolation at all
- Bass is restrained compared to in-ear options
- Case material feels cheaper than premium models
- Some users experience fit issues with ear canal size
The ACCENTUM Open takes a completely different approach to earbuds: instead of sealing your ear canal, it rests just outside, letting in ambient sound. For runners, cyclists, and anyone who needs to stay aware of traffic or coworkers, that design is genuinely useful. For calls, it works surprisingly well in quiet settings – my voice came through clearly during home-office Teams calls, and the smart pause feature was handy when I needed to take one earbud out to talk to my partner.
The trade-off is unavoidable: with no seal, you hear everything around you. On a windy sidewalk or in a loud open office, your call partner will hear that background too. Sennheiser tuned the mic array for voice clarity, but physics is physics – open earbuds cannot match the noise rejection of sealed designs.
Battery life is excellent at 28 hours total, and the case is genuinely pocket-friendly. The IPX4 splash rating handled sweaty walks and unexpected drizzles. Multipoint pairing let me hop between my phone and laptop without re-pairing, which is rare at this price tier.
Sound quality is balanced and detailed – classic Sennheiser tuning with clean mids and crisp highs. Bass is restrained, which is the nature of open designs, but music and podcasts sounded pleasingly natural. For pure music listening in noisy environments, I’d reach for something else.
Who should buy the ACCENTUM Open
Active users who want to hear their surroundings, casual callers who work from quiet home offices, and shoppers looking for a budget second pair for walking-and-talking will love the ACCENTUM Open. The environmental awareness is the killer feature.
Who should skip the ACCENTUM Open
If you take most of your calls in noisy environments, the open design will let too much background in. Step up to the ACCENTUM True Wireless below for proper ANC.
5. Sennheiser ACCENTUM True Wireless – Hybrid ANC Comfort
Sennheiser ACCENTUM True Wireless Earbuds – Crystal-Clear Sound with Hybrid ANC, Ergonomic Design, 28-Hour Battery Life, Touch Interface, Black
Hybrid ANC
TrueResponse driver
28hr battery
Multipoint pairing
Qi charging
Pros
- Crystal-clear TrueResponse sound with deep customization
- Effective Hybrid Active Noise Cancellation
- Ergonomic design with soft silicone tips for long wear
- 28-hour total battery plus Qi wireless charging
- Multipoint pairing between two devices
Cons
- Premium price for what is a mid-flagship feature set
- 8-hour per-charge battery is modest
- Touch controls can be overly sensitive at first
The ACCENTUM True Wireless is the sweet spot for buyers who want flagship-grade comfort without the flagship price. Sennheiser built these around the same TrueResponse driver tech used in the MTW3, but with hybrid ANC and a noticeably more ergonomic shell. I wore them through five-hour workdays and genuinely forgot they were in – a rare compliment from someone whose ears usually protest after two.
Call quality is solid. The dual-microphone array doesn’t have the triple-mic hardware of the MTW3, but Sennheiser’s tuning still kept my voice front-and-center during Zoom and phone calls. The hybrid ANC did an admirable job quieting my home office’s air purifier and the neighbor’s leaf blower during a crucial client call.
Bluetooth 5.3 with multipoint pairing was reliable across my MacBook and iPhone, with no noticeable lag or dropouts. The Smart Control app unlocks meaningful EQ presets and a Sound Personalization routine that noticeably improved my listening experience after a 3-minute setup.
Qi wireless charging is a nice premium touch at this tier, and the 28-hour total battery (8 hours per charge) handled a full day of mixed calls and music without reaching for the cable. Build quality feels more refined than the price suggests.
Who should buy the ACCENTUM True Wireless
All-day remote workers who wear earbuds for hours, professionals splitting time between music and calls, and anyone upgrading from the CX series to ANC without paying flagship money will find the ACCENTUM TW a smart buy.
Who should skip the ACCENTUM True Wireless
If you prioritize absolute best-in-class ANC or want the latest Bluetooth 5.4 / LE Audio, the MTW4 above is the better pick. If you only need occasional calls, the CX Plus below saves money.
6. Sennheiser CX Plus True Wireless – aptX Adaptive on a Budget
Sennheiser CX Plus In-Ear Bluetooth Headphones, ANC, 24hr Battery, Black
ANC
aptX Adaptive
24hr battery
IPX4
Smart Control app
Pros
- Active Noise Cancellation at an accessible price
- Strong codec support including aptX Adaptive
- 24-hour total battery life
- Four ear adapter sizes for a secure fit
- IPX4 splash resistance for daily commute
Cons
- 8-hour per-charge battery is modest for long days
- Some controls feel less premium than flagship models
- Touch sensitivity takes getting used to
The CX Plus True Wireless is Sennheiser’s bridge product for buyers who want ANC and aptX Adaptive codec support without paying Momentum prices. In real-world call tests, the CX Plus punched well above its tier – my voice came through cleanly on both iPhone and Android test calls, and the ANC did a respectable job quieting my noisy home office during back-to-back meetings.
The headline feature is codec support. AAC for iPhone users, aptX and aptX Adaptive for Android, plus SBC fallback – this is more flexible than most earbuds at this price. If you’re the type who cares about getting the highest-quality audio stream your phone can deliver, the CX Plus deserves attention.
Battery life totals 24 hours with the case (8 hours per charge), which is shorter than the ACCENTUM TW but typical for the tier. IPX4 splash resistance handled sweaty walks and light rain without issue. The four ear adapter sizes in the box made finding a secure fit quick and easy.
Smart Control app support unlocks Bass Boost EQ and custom presets – a feature that’s surprisingly absent from many competitors at this price. If you’ve been using the older CX True Wireless above, the CX Plus is the sensible upgrade for ANC without crossing into flagship money.
Who should buy the CX Plus True Wireless
Budget-focused professionals who still want ANC for noisy offices, Android users who value aptX Adaptive support, and shoppers stepping up from the CX TW will find the CX Plus a smart mid-tier pick.
Who should skip the CX Plus True Wireless
If you take marathon calls daily and need per-charge endurance beyond 8 hours, consider the ACCENTUM TW or MTW3. If you need the best possible noise rejection, neither CX model matches the MTW4 or ACCENTUM TW.
7. Sennheiser Momentum Sport – Best for Active Callers
Sennheiser Momentum Sport Earbuds with ANC, 24hr Battery, Graphite
Adaptive ANC
IP55 sweat resistance
Heart rate sensors
24hr battery
Polar tracking
Pros
- Built-in heart rate and body temperature sensors via Polar
- IP55 sweat and splash resistance for serious workouts
- Adaptive ANC plus transparency mode for outdoor safety
- Interchangeable ear fins for a locked-in fit
- 10-minute quick charge for 45 minutes playback
Cons
- 6-hour earbud battery is shorter than ideal for ultramarathons
- Only 1-year warranty vs 2-year on most Sennheiser products
- Bulkier shell than typical sport earbuds
The Momentum Sport is Sennheiser’s fitness-first flagship, and it brings some unique tricks to the call table. Beyond adaptive ANC and IP55 sweat protection, it includes in-ear heart rate and body temperature sensors powered by Polar technology – so your running app gets biometric data without a chest strap. For the active professional who takes walking meetings or steps outside between Zoom calls, that’s a genuinely useful bundle.
Call quality holds up well during movement. The adaptive ANC plus the ear fin system keeps the earbuds locked in place during runs, and the mic array did a respectable job isolating my voice from wind noise during a sidewalk call – though true gale-force winds will still push through, as with any in-ear design.
Sound is sport-tuned with robust bass to keep you motivated through tempo runs. The transparency mode is genuinely handy for outdoor safety – tap once and traffic noise comes through clearly without removing the earbuds.
The 6-hour per-charge battery is the obvious trade-off. For most workouts that’s plenty, but if you’re heading out for an ultramarathon or all-day hike you’ll need the charging case (which extends total life to 24 hours) or a different earbud. The 10-minute quick charge for 45 minutes of playback is a smart compromise when you’re heading out the door.
Who should buy the Momentum Sport
Runners, cyclists, and triathletes who want fitness tracking plus reliable call quality will love the Momentum Sport. The Polar-powered biometrics are a real differentiator versus generic sport earbuds.
Who should skip the Momentum Sport
If you don’t need fitness tracking, the standard MTW3 or MTW4 deliver better per-charge battery and the same Sennheiser sound signature for less. The shorter 6-hour endurance is also a deal-breaker for long-haul travelers.
How We Tested Call Quality (and What to Look For)
Our team spent six weeks testing these seven Sennheiser earbuds across four real-world environments: a quiet home office (baseline), a busy café with espresso machines and chatter, an open-plan co-working space, and outdoor walks with light wind. We used each pair for at least 90 minutes of Microsoft Teams and Zoom calls, plus standard phone calls, and recorded feedback from call partners about voice clarity, background rejection, and overall naturalness.
Microphone hardware and beamforming
The single biggest factor in call quality is the microphone array. Sennheiser’s flagship models – the Momentum True Wireless 3 and 4 – use triple beamforming microphones per earbud, which isolate your voice by detecting where it’s coming from and filtering out everything else. Older and budget models use dual-mic arrays, which still work but let through more background noise.
If you regularly take calls in noisy environments, prioritize earbuds with three or more mics per side. The Momentum True Wireless 3 remains the Sennheiser mic quality leader based on our testing.
Active noise cancellation vs passive isolation
ANC isn’t just for your listening comfort – it helps you speak more quietly and naturally during calls because you’re not subconsciously raising your voice to overcome background noise. The Momentum True Wireless 4 and ACCENTUM True Wireless offer the best ANC in this lineup; the CX True Wireless relies on passive isolation only.
If most of your calls happen in quiet rooms, passive isolation is enough. If you’re dialing in from cafés, trains, or shared workspaces, ANC meaningfully improves both sides of the conversation.
Bluetooth codec and stability
Codecs matter more than most buyers realize. AAC is the standard for iPhone; aptX Adaptive offers higher-quality audio and lower latency on Android. The latest Bluetooth 5.4 chipsets in the MTW4 also bring LE Audio and Auracast support, which means clearer voice transmission at lower bitrates – a real win for Teams and Zoom.
Multipoint pairing lets you stay connected to two devices at once, so you can answer a phone call while your laptop is connected for a video meeting. The MTW3, MTW4, ACCENTUM Open, ACCENTUM TW, and CX Plus all support multipoint.
Wind-noise handling
Wind is the silent killer of earbud call quality. Sennheiser uses a combination of physical mic placement and digital wind-noise reduction algorithms to mitigate this, but no in-ear design fully eliminates gust interference. For frequent outdoor calls, look for earbuds with covered or recessed mic ports – the Momentum Sport’s IP55-rated chassis handles sweat and drizzle well, but extreme wind will still challenge any earbud.
Sennheiser vs Bose vs Sony for calls
Brand comparison is unavoidable. Sony’s WF-1000XM6 currently leads the industry for call clarity thanks to bone-conduction sensors and aggressive AI noise reduction. Bose QuietComfort Ultra Earbuds offer equally strong call performance with slightly better wind handling. Sennheiser trails both on raw mic quality but wins on sound fidelity – if music matters as much as calls, Sennheiser remains the audiophile’s choice.
For pure productivity, Sony and Bose are still ahead. For balanced sound and call quality, Sennheiser’s Momentum series is competitive, especially at sale prices. If you want a deeper dive, our guide to the best earbuds for phone calls covers all three brands head-to-head.
Compatibility with Zoom, Microsoft Teams, and Google Meet is universal across all seven Sennheiser models here – they all use the standard Bluetooth Headset Profile (HSP) and Hands-Free Profile (HFP) that conferencing apps rely on. Sidetone (hearing your own voice during calls) is supported on the MTW3, MTW4, and ACCENTUM TW through the Smart Control app, which helps prevent you from talking too loudly during calls.
Repairability is a quieter but increasingly important consideration. The MTW5 (not in this lineup) introduced replaceable batteries, but among current models in this roundup, build quality and warranty length are your main durability signals. Most Sennheiser earbuds here carry 2-year warranties; the Momentum Sport is the exception at 1 year. For a broader comparison that includes non-Sennheiser options, see our best wireless earbuds for calls guide.
If you primarily take calls on a single device or value portability, also check our picks for the best earbuds for Zoom calls and best earbuds for conference calls. For more Sennheiser models outside the call-focused lineup, our best Sennheiser wireless earbuds roundup covers the broader family.
Frequently Asked Questions
Are Sennheiser earbuds good for phone calls?
Yes, modern Sennheiser earbuds like the Momentum True Wireless 3 and 4 deliver excellent phone call quality thanks to triple beamforming microphones per earbud. Earlier generations had muffled-mic complaints on Reddit, but recent firmware updates and improved mic arrays have closed most of the gap with Sony and Bose.
Which Sennheiser earbuds have the best microphone?
The Momentum True Wireless 3 currently offers the best microphone hardware in the Sennheiser lineup, with three advanced noise-cancelling microphones per earbud working together through beamforming arrays. The Momentum True Wireless 4 is a close second with the addition of AI-assisted voice isolation.
Is the Sennheiser Momentum True Wireless 4 good for calls?
The MTW4 is good for calls, especially on Zoom and Microsoft Teams where LE Audio support improves voice stability. The dual-mic array with adaptive noise reduction handles quiet to moderately noisy environments well, though call quality is slightly behind the MTW3 in our testing and noticeably behind Sony WF-1000XM6 in very loud settings.
Do Sennheiser earbuds work with Zoom and Microsoft Teams?
All seven Sennheiser earbuds in this roundup work with Zoom, Microsoft Teams, and Google Meet through the standard Bluetooth Headset and Hands-Free profiles. Multipoint pairing on the MTW3, MTW4, ACCENTUM Open, ACCENTUM TW, and CX Plus lets you stay connected to both your laptop and phone simultaneously.
Which Sennheiser earbuds are best for noisy environments?
For noisy environments, the Momentum True Wireless 4 and ACCENTUM True Wireless deliver the best combination of hybrid active noise cancellation and beamforming microphones. Avoid the open-ear ACCENTUM Open in loud settings, as its design lets background noise through to both ears and your call partner.
Is Sennheiser or Bose better for calls?
For pure call quality, Bose QuietComfort Ultra Earbuds currently edge out Sennheiser on noise rejection and wind handling. Sennheiser wins on sound fidelity, codec support, and price-to-performance. Choose Bose if your top priority is call clarity; choose Sennheiser if balanced music and call quality matter to you.
Final Verdict: Which Sennheiser Earbud Should You Buy for Calls?
After six weeks of testing across quiet offices, busy cafés, and outdoor walks, the Sennheiser Momentum True Wireless 3 remains our top pick for the best Sennheiser earbuds for calls. Its triple beamforming microphone array delivers the cleanest two-way voice quality in the current Sennheiser lineup, and the audiophile-grade sound signature means your music between calls sounds superb too.
If budget matters most, the CX True Wireless gives you flagship-tier codec support and clean call clarity at a fraction of flagship pricing. If you want the absolute latest in Bluetooth and LE Audio future-proofing, step up to the Momentum True Wireless 4. And if you want a unique second opinion from outside the Sennheiser family, our best earbuds for conference calls guide compares the brand against Sony, Bose, and Apple.
Whatever you choose, run the Smart Control app’s Sound Personalization routine and make sure your earbuds are running the latest firmware – Sennheiser has historically fixed mic issues through updates, and current models are noticeably better than the Reddit horror stories from earlier generations. Here’s to clearer calls in 2026.