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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-20 · 7 min read · Independent comparison
• PROHEAR 033 biggest strength: True hearing protection hardware — an NRR 25dB / SNR 30dB earmuff with Bluetooth 5.4, AM/FM radio and a 50-hour battery, sold as a 2-pack.
• PROHEAR 033 biggest trade-off: It's a full over-ear muff at 0.82 lb, so it's not something you'd wear swimming or in the pool — it's built for loud, dry, dirty jobs.
• mojawa Purra Swim Bone biggest strength: IP68 full waterproofing plus 32GB of onboard storage, so you can swim laps with no phone anywhere near the water.
• mojawa Purra Swim Bone biggest trade-off: It's bone conduction with open-ear placement, so it doesn't block outside noise at all, and battery life is 15 hours versus the PROHEAR's 50.
• Who PROHEAR 033 is for: Anyone who wants noise reduction first and music/radio second — lawn care, snow removal, woodworking, construction.
• Who mojawa Purra Swim Bone is for: Swimmers, runners and cyclists who want audio without covering their ears or carrying a device.
The PROHEAR 033 is, at its core, a piece of safety gear. The specs list an NRR of 25dB and an SNR of 30dB, and the ear muffs are backed by ANSI S3.19-1974 and CE EN 352-1 standards. That matters, because it means the noise reduction isn't a marketing number — it's a rated figure tied to recognized testing standards. If your problem is a lawnmower, a snow blower, a table saw or a job site, the muff is doing the heavy lifting here, and the audio is the bonus.
That audio side is genuinely well thought out for this category. Bluetooth 5.4 gives you a stable connection for streaming and hands-free calls through the integrated microphone, so you can take a call without pulling the earmuffs off your head. There's also a real AM/FM radio with a high-sensitivity antenna, automatic and manual station search, and 10 AM plus 10 FM presets, all visible on an LCD display. That's a very specific but genuinely useful feature set — think of someone at a ball game who wants to follow the commentary while still protecting their ears from the crowd and the PA.
Comfort and endurance are where the design details add up. It weighs 0.82 lb, uses soft snap-in ear cushions you can remove for cleaning, and has an adjustable padded headband to fit different head sizes. The 1500mAh battery is rated for 50 hours of continuous operation after a 6-hour charge, with 48 hours in Bluetooth mode and over 40 hours in wired/FM/AM modes, and it's rated for over 300 charge cycles. The 2-pack is the practical part: one for you, one for a partner, or one for the shop and one for the garage.
Who should skip it? If you want to swim with music, this is the wrong tool entirely — it's a full over-ear muff, not a waterproof headphone. And if you specifically need to hear traffic or a training partner while you move, the whole point of the PROHEAR is that it blocks sound, so it works against you there.
The mojawa Purra Swim Bone is built around one problem: how do you listen to music when Bluetooth can't reach you and water is everywhere? The answer here is a lab-certified IP68 rating that the spec sheet says supports deep underwater use, plus 32GB of built-in storage. You load music onto the headset itself, switch to MP3 mode, and swim. No phone, no pouch, no signal dropouts at the wall. It supports MP3, WAV, AAC, FLAC, M4A and APE, so lossless files aren't a problem, and you manage playlists through the MOJAWA app.
The dual-mode design is the smart part. Bluetooth 5.3 handles daily life — phone calls, commuting, gym sessions — while MP3 mode takes over the moment you go under. The built-in microphone uses environmental noise cancellation to cut wind and background noise on calls, and it supports dual-device connection with auto-resume after you hang up. For a runner or cyclist, that's a genuinely convenient setup.
Physically, it's a completely different animal from the PROHEAR. At 32 grams with a titanium alloy frame and skin-friendly silicone, it's designed to sit snugly and stay put through swimming and hard training. Bone conduction means it sits outside your ear canal, so your ears stay open — you can hear a pool lane neighbor, a car, or a coach. The trade-off is baked in: open-ear means almost no noise blocking, so this is not hearing protection and it's not for drowning out a mower. Battery is rated up to 15 hours at moderate volume with a 1-hour charge, and there's a two-year warranty listed. The 19mm dynamic driver, 8-ohm impedance and 20Hz frequency response round out the audio spec.
Who should skip it? Anyone whose main goal is blocking loud noise. If you need to mow safely, this won't do it. And if you hate app-based control or fiddling with file transfers, the 32GB workflow is more effort than just pairing a phone.
• Best for noise reduction → PROHEAR 033. NRR 25dB / SNR 30dB and certified to ANSI S3.19-1974 and CE EN 352-1. The mojawa has no meaningful noise blocking by design.
• Best for swimming → mojawa Purra Swim Bone. IP68 full waterproofing plus 32GB of offline storage is the entire reason it exists.
• Best for battery life → PROHEAR 033. 50 hours rated, versus 15 hours for the mojawa.
• Best for safety while moving outdoors → mojawa Purra Swim Bone. Open-ear placement keeps you aware of traffic and surroundings; the PROHEAR does the opposite.
• Best for radio and hands-free calls on the job → PROHEAR 033. AM/FM with 20 presets, LCD display and Bluetooth 5.4 calling.
• Best for phone-free training → mojawa Purra Swim Bone. 32GB of local storage and lossless format support mean no device required.
• Best for sharing → PROHEAR 033. It ships as a 2-pack, so two people are covered out of one box.
• Best for light weight → mojawa Purra Swim Bone. 32g versus 0.82 lb. If you're wearing it for hours during a workout, that gap is obvious.
In my opinion, most people searching this comparison are really asking one question: do I need protection or do I need waterproof audio? If it's protection — mowing, snowblowing, woodworking, a loud shop — I'd buy the PROHEAR 033. The certified noise reduction, the 50-hour battery and the 2-pack make it the more versatile purchase for household and job-site noise. I'd only go with the mojawa Purra Swim Bone if swimming or phone-free training is the actual use case, because in that specific scenario nothing about an over-ear muff helps you. Two different jobs, two different tools — pick the job first.
The PROHEAR 033, clearly. It's rated NRR 25dB / SNR 30dB and certified to ANSI S3.19-1974, while the mojawa is open-ear bone conduction with no meaningful noise blocking. For mower noise, the PROHEAR is the one that protects your hearing.
Can I swim with the mojawa Purra Swim Bone?
The PROHEAR 033 is rated for 50 hours of continuous operation after a 6-hour charge, with 48 hours in Bluetooth mode. The mojawa Purra Swim Bone is rated up to 15 hours at moderate volume and charges fully in about 1 hour. For long workdays, the PROHEAR lasts far longer.
Yes — costs shift over time, and this comparison is based on design and specs only. Use the price button on this page to check the current price on Amazon for whichever one matches your use case, then decide.
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