We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-29 · 6 min read · Independent comparison
If you want maximum hearing protection with all-day battery life for loud outdoor chores, choose ZOHAN EM037; if you need compact, low-latency wireless earbuds for gaming and everyday listening, choose HTC True. These two products share almost nothing except the word "Bluetooth" — one is a heavy-duty earmuff built around a 30dB noise-reduction rating, the other is a pair of tiny in-ear buds tuned for responsiveness. The right pick comes down to what you're actually protecting your ears from.
• ZOHAN EM037 biggest strength: A 30dB SNR noise-reduction rating plus a 1100mAh rechargeable battery delivering up to 40 hours of playtime — real earmuff-class protection with sound built in.
• ZOHAN EM037 biggest trade-off: It's a full over-ear earmuff weighing 11.52 ounces, bulkier than earbuds and not something you'd tuck in a pocket. The yellow ABS shell and gel ear pads aren't trying to be subtle.
• HTC True biggest strength: Bluetooth 5.3 with a 45ms ultra-low latency game mode, a 10mm dynamic driver, and a pocketable charging case that stretches total playtime to 22 hours.
• HTC True biggest trade-off: In-ear buds with IPX4 water resistance are built for sweat and splashes, not for blocking sustained loud machinery the way a dedicated earmuff does.
• For whom: ZOHAN EM037 is for mowing, snowblowing and workshop noise; HTC True is for gaming, calls and on-the-go listening.
The EM037 is a hearing-protection product first and a pair of Bluetooth headphones second. That order matters. Its headline figure is a 30dB SNR noise-reduction rating, and the build backs it up: a durable ABS shell paired with double thickened noise-canceling foam and gel ear pads. The design goal is to seal around your ear and cut down continuous loud sound — the kind you get from a mower deck, a snowblower auger or a shop full of power tools.
Then there's the battery. A 1100mAh rechargeable cell gives you up to 40 hours of playtime, which is a genuinely long stretch for something in this category. If you're the type who mows a couple of acres, clears a driveway through winter, or spends a Saturday in the garage, that runtime means you charge it occasionally rather than constantly. The gel ear pads are the comfort story here — gel tends to distribute pressure better than plain foam over long wear, which is exactly the scenario this product is designed for.
Who should buy it: homeowners with loud outdoor chores, hobbyist woodworkers, and anyone who wants music or a podcast while their ears are actually being protected. Who should skip it: if you mainly want earbuds for the gym, commuting or PC gaming, the EM037 is the wrong shape and the wrong tool. It's a Standard-fit, adult-sized over-ear earmuff in yellow — visible by design, not discreet. If you want something that disappears into your pocket, keep reading.
The HTC True Wireless Earbuds 7 are the opposite philosophy: small, light, and tuned for responsiveness. The spec that jumps out is the game mode — 45ms ultra-low latency, which is the number that matters if you've ever been annoyed by audio lagging behind what's happening on screen. You hold the headset for two seconds to switch modes, and the buds are built around a 10mm dynamic driver with a 20Hz–20kHz frequency range, which is the full audible spectrum and the foundation for the "deep bass" character HTC is aiming at.
Connectivity is Bluetooth 5.3, with a rated range up to 30 feet (the listing also cites 32.8 ft in the feature copy), and support for the usual profiles — HFP, HSP, A2DP, AVRCP and more. In practical terms that means stable pairing with iOS, Android and Windows, which HTC explicitly calls out. The IPX4 rating covers sweat and raindrop splashes, so workouts and light weather are fine; submersion is not.
Battery life is 22 hours total, with over 6 hours on a single charge and the case providing more than three recharges. Charging is quick: 40 minutes for the buds and about 1.5 hours for the case via USB-C. You get three sizes of eartips (the package includes S and L rubber tips plus the pre-fitted pair), touch controls for media, a built-in mic, and active noise cancellation. The enclosure uses silicone and TPE, and the whole thing is black.
Who should buy it: gamers, commuters, students in online classes, and anyone who wants one pair of buds for music, calls and play. Who should skip it: if your priority is blocking the roar of an engine or a mower for hours at a time, in-ear buds with ANC are not a substitute for a 30dB-rated earmuff.
Side-by-Side: Which Should You Choose?
• Best for hearing protection → ZOHAN EM037. A 30dB SNR rating with double thickened foam is a different class of noise reduction than in-ear ANC.
• Best for gaming → HTC True. The 45ms ultra-low latency game mode is the single most relevant spec here.
• Best for commuting, calls and workouts → HTC True. Bluetooth 5.3, a built-in mic, IPX4 sweat resistance and three eartip sizes fit daily mobile use.
• Best for long wear during chores → ZOHAN EM037. Gel ear pads and an over-ear fit are designed for extended sessions with pressure spread out.
• Best for portability → HTC True. A charging case you can pocket versus an 11.52-ounce earmuff.
• Best for shared or public listening → HTC True. Touch media controls and a compact form factor suit being out and about.
• Best for loud-environment focus → ZOHAN EM037. Sound isolation is the point of the product, not an add-on feature.
In my opinion, the honest answer is that these aren't competitors — they're answers to different questions. If I had to pick one for the average buyer reading this, I'd lean HTC True: Bluetooth 5.3, a 45ms game mode, 22 hours of total playtime and three eartip sizes cover more of everyday life for more people. But if your ears are actually at risk — mowers, snowblowers, saws, sustained engine noise — buy the ZOHAN EM037 and don't look back. Protection you can measure at 30dB beats convenience every time the noise gets serious. Check the current price on Amazon for whichever one matches your use case.
Yes, for that job specifically. The EM037 is built as hearing protection with a 30dB SNR rating and double thickened noise-canceling foam, while the HTC True is a pair of in-ear buds with IPX4 splash resistance. For sustained loud machinery, the earmuff design is the safer choice.
According to its specs, yes — it advertises a 45ms ultra-low latency game mode, and the product information lists audio latency at 45 milliseconds. You switch into it by holding the headset for about two seconds. That's the feature to care about if audio sync matters to you.
The ZOHAN EM037 offers up to 40 hours of playtime from its 1100mAh rechargeable battery. The HTC True gives over 6 hours per charge with the case providing more than three additional recharges, for 22 hours total; the buds charge in 40 minutes and the case in about 1.5 hours.
The HTC True fits that better. It has a built-in mic, Bluetooth 5.3 for stable pairing across iOS, Android and Windows, IPX4 sweat and splash resistance, and three sizes of eartips, so it adapts across calls, workouts and commuting. The ZOHAN EM037 is the better pick only when noise protection is the main goal.
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