How We Research
Updated: 2026-09-25 · 6 min read · Independent comparison
If you want proper hearing protection with a 25 dB noise reduction rating and the ability to answer calls without taking your earmuffs off, choose PROTEAR Hearing Protection NRR; if you need wireless earbuds with a real transparency mode so you can stay aware of your surroundings while listening, choose AIRO Duo.
• PROTEAR Hearing Protection NRR — biggest strength: It is actual safety gear, rated ANSI S3.19 NRR 25dB (US) and CE EN352-1 SNR 30dB (EU), with Bluetooth 5.4 streaming built in and 40+ hours of playtime.
• PROTEAR Hearing Protection NRR — biggest trade-off: It uses passive noise cancellation only and has no transparency mode, so nothing funnels the outside world back in — it blocks sound, it doesn't let it through.
• AIRO Duo — biggest strength: Three listening modes (ANC, transparency, normal) with dual MEMS microphones and 13mm dynamic drivers — transparency mode is the headline feature here.
• AIRO Duo — biggest trade-off: It's an everyday earbud, not certified hearing protection — no NRR or SNR rating, and up to 20 hours of total playtime is roughly half of what PROTEAR offers.
• Who each pick is for: PROTEAR for mowing, woodworking, shooting, or running loud machines; AIRO Duo for commuting, workouts, calls, and anyone who wants to hear traffic or a coworker without pulling an earbud out.
PROTEAR is a hearing protection product first and a Bluetooth headphone second. The core spec is the noise reduction: NRR 25dB under ANSI S3.19 and SNR 30dB under CE EN352-1. That's a passive seal doing the work — soft ear cups, an adjustable headband, and a low-profile fit that the design notes say is meant to stay comfortable even with glasses or under a hat. If your day involves a mower, a table saw, a shooting range, or a loud machine, that's the number that matters.
On top of that shell, PROTEAR adds Bluetooth 5.4 with a claimed transmission boost over the older 1Mbps standard, integrated microphones so you can take calls hands-free, and a 1200mAh rechargeable battery rated for 40+ hours of playtime — or 120+ hours in AUX mode. There's no battery to buy and no AM/FM radio, which the product notes call out explicitly. The 40-hour figure is the practical hook: you can wear these for a full week of work sessions and charge them once.
Who should buy it: anyone who needs genuine hearing protection and still wants music, podcasts, or call audio while working in noise. Who should skip it: if you want to hear your surroundings while wearing them, or you want earbuds for the gym and the train, PROTEAR is the wrong tool — it has no transparency mode, and the whole point of the design is to keep the outside out.
AIRO Duo is built around awareness and everyday listening. The mode switch is the centerpiece: ANC to cut background noise, transparency to let surrounding sound back in, and normal for balanced listening. That transparency mode is the reason most people end up comparing these two at all — it's the feature PROTEAR simply doesn't have. If you're walking, cycling, working in a shared office, or just want to hear a train announcement without removing an earbud, this is the design that serves you.
The rest of the sheet reads like a modern true-wireless earbud. Bluetooth 5.4 for faster pairing and lower latency, touch controls (double-tap to play or pause, long-press for your voice assistant), a dual MEMS microphone system with ANC/ENC filtering for call clarity, and 13mm copper-ring composite dynamic drivers for bass-forward stereo sound. The LED display on the case shows remaining battery for both the case and the buds, playtime runs up to 20 hours total, and IPX4 sweat resistance plus an ergonomic in-ear fit make them viable for workouts. Two sizes of silicone tips (small and large) ship in the box, and there's a 1-year warranty.
Who should buy it: commuters, gym-goers, remote workers on calls, and anyone who values hearing their environment as much as their music. Who should skip it: if your priority is protecting your ears from sustained loud noise — mowing, machinery, gunfire — AIRO Duo has no noise reduction rating and isn't safety equipment. It reduces distraction; it doesn't protect hearing.
• Best for actual hearing protection → PROTEAR Hearing Protection NRR. It carries a real NRR 25dB / SNR 30dB rating. AIRO Duo carries none.
• Best for staying aware of your surroundings → AIRO Duo. Transparency mode is exactly the feature PROTEAR lacks.
• Best for battery life → PROTEAR Hearing Protection NRR. 40+ hours of playtime and 120+ hours in AUX mode, versus up to 20 hours total on AIRO Duo.
• Best for calls → a tie, with different strengths. PROTEAR has integrated mics in earmuffs for hands-free answering; AIRO Duo uses dual MEMS mics with ANC/ENC filtering.
• Best for workouts and commuting → AIRO Duo. IPX4 sweat resistance, in-ear fit, and touch controls fit that use case. PROTEAR's over-ear earmuff shape doesn't.
• Best for wearing with glasses or a hat → PROTEAR Hearing Protection NRR. The design notes specifically call out soft cups for glasses wearers and headband cutouts for hats.
• Best for listening to music or podcasts in loud environments → PROTEAR Hearing Protection NRR. It combines 25dB passive reduction with 13mm-class audio — actually, with high-fidelity speakers fed by Bluetooth 5.4, so the noise floor drops while the music keeps playing.
• Best for monitoring your own battery level → AIRO Duo. The LED display shows charge for the case and both buds.
• Best for a single all-day device → PROTEAR Hearing Protection NRR if your day is noisy work; AIRO Duo if your day is errands, calls, and movement.
In my opinion, the right pick comes down to one question: are you trying to block the world out or stay tuned into it? If it's block — mowing, woodworking, shooting, running a machine — I'd buy PROTEAR Hearing Protection NRR. The 25dB rating, 40+ hour battery, and hands-free calls make it the more capable tool for that job, and no amount of earbud features replaces a certified hearing protection rating. If your day is commuting, training, and taking calls, I'd buy AIRO Duo for the transparency mode and everyday comfort. They're not really competitors — they solve opposite problems.
which airpods have transparency mode
I can't speak to Apple's lineup here — this comparison covers PROTEAR Hearing Protection NRR and AIRO Duo. Of the two, only AIRO Duo offers a transparency mode, which lets surrounding sound back in while you're listening.
how to turn airpods to transparency mode
For AirPods specifically, you'd use Apple's own controls, which aren't part of these data sheets. On the AIRO Duo, the equivalent is switching between ANC, transparency, and normal modes using its touch controls.
do all airpods have transparency mode
That's an Apple product question rather than one about these two models. What I can tell you is that transparency mode isn't universal across earbuds either — PROTEAR Hearing Protection NRR has no transparency mode at all, while AIRO Duo does.
how to turn on transparency mode airpods
Again, that's an Apple-specific control question. If what you actually want is transparency in a pair of earbuds compared here, AIRO Duo is the one that offers it, toggled through its touch controls rather than any physical switch.
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See also: Plugfones Sovereign Duo vs Logitech FITS True: True Wireless, Audio-Technica ATH-ADX5000 vs StreamEye RODE RODECaster Duo, Otium Earbuds vs The Voice Duo True: True Wireless Stereo