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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want certified hearing-protection earmuffs for young kids, choose ProCase 2; if you need active noise cancelling wireless earbuds built for workouts and long listening sessions, choose WHYKJTEK Active Noise Cancelling. These two products share the words "noise cancelling" and almost nothing else — one is a passive safety accessory for children, the other is an adult audio device. So the real question isn't which is "better." It's which job you're actually shopping for.
• ProCase 2's biggest strength: A real NRR 24dB noise reduction rating with thickened noise-dampening foam, sized for kids aged 2–8 with a retractable headband and 270° rotatable ear cups.
• ProCase 2's biggest trade-off: It's passive protection only — no audio, no Bluetooth, no app. It blocks sound, it doesn't play anything.
• WHYKJTEK's biggest strength: Adaptive ANC that cuts up to 45dB, plus a claimed 90 hours of total playtime from the charging case and IPX7 waterproofing for sweat and rain.
• WHYKJTEK's biggest trade-off: It's an in-ear hook design for one wearer and it runs on a battery — no hearing-protection rating, no kid sizing, nothing to fall back on once the case is empty.
• Choose ProCase 2 if you're buying ear protection for a child at a monster truck show, fireworks, an airport, or for sensory needs.
• Choose WHYKJTEK if you're an adult who wants one pair of earbuds for the gym, the commute, and long flights with active noise cancelling on demand.
ProCase 2 is a pack of two folding earmuffs in pink and sky blue, and the spec sheet is refreshingly specific about what it's for: preventing hearing damage in children with sound sensitivities. The headline number is an NRR 24dB rating, achieved with thickened noise-dampening foam. NRR is a standardized hearing-protection measure, so that figure tells you this is a genuine protective device rather than a toy-shaped accessory. The listed use cases read like a parent's calendar — airplane flights, monster jams, sports events, concerts, movie theaters, fireworks — and that matches the design intent: loud, sudden, sustained environments where a small child can't just "tough it out."
Who should buy it: parents of 2–8 year olds heading somewhere loud, and families with a child who has sensory or autism-related sound sensitivities and needs a predictable, comfortable way to take the edge off. The two-pack also solves the sibling problem in one purchase. Who should skip it: anyone old enough to want music, calls or a transparency mode. This is environmental noise cancellation in the passive sense — it reduces what reaches the ear, full stop. There's no battery, no pairing, and no audio. If your kid is older than the stated range or wants to listen to something, this isn't the product.
WHYKJTEK Active Noise Cancelling: Who It's For
WHYKJTEK's BX30 is a different animal entirely: true wireless earbuds with an ear-hook design, a charging case in rose gold, and active noise cancellation rated at up to 45dB of targeted reduction. WHYKJTEK describes it as engineered for athletes and active lifestyles, and the feature list backs that framing up. ANC and a transparency mode are both switched on with taps on the right earbud, so you can shut out airplane rumble and gym chatter, then let the world back in without removing anything. The noise control field on the spec sheet simply reads "Active Noise Cancellation" — this is electronic cancelling, not passive blocking, and that's the fundamental difference from ProCase.
Battery is the other headline. WHYKJTEK claims up to 8 hours in the earbuds and more than 90 hours total when you alternate between them using the case, with a 10-minute quick charge adding roughly 2 hours. The case has a dual LED display showing exact battery percentages instead of vague blinking lights — a small thing that makes a real difference on a trip when you're deciding whether to top up. Charging the case itself takes about 2 hours. IPX7 waterproofing means sweat, rain and accidental splashes aren't a concern, which lines up with the workout positioning.
The fit is built around stability rather than deep insertion. Flexible ear hooks cradle the contour of your ear instead of the canal, which WHYKJTEK says comes from a large body of ear scans, and each bud weighs about 6 grams. Three sizes of silicone tips (S/M/L) let you dial in a seal, and the hypoallergenic silicone is aimed at all-day wear without pressure points. Connectivity runs on Bluetooth 6.0 with LE Audio, a claimed 50 ft range, and compatibility with Android, iOS and Windows; controls are physical push buttons rather than touch, which reduces accidental skips mid-run. The 10mm dynamic drivers handle the stereo bass side of things.
Who should buy it: adults who want one set of earbuds for running, lifting, commuting and travel, and who value ANC plus a genuinely long battery figure. Who should skip it: anyone shopping for a child's hearing protection, anyone who dislikes ear-hook fits, and anyone who wants an over-ear rather than in-ear feel. There's no hearing-protection rating here, and no kid sizing — this is a personal audio product, not safety gear.
• Best for child hearing protection → ProCase 2. NRR 24dB, sized 2–8 years, two pairs included.
• Best for active noise cancelling → WHYKJTEK. Up to 45dB of adaptive ANC plus a transparency mode.
• Best for battery life → WHYKJTEK. Up to 8 hours per charge and 90+ hours with the case.
• Best for no-battery reliability → ProCase 2. Passive foam muffs that work every time you pick them up.
• Best for workouts and sweat → WHYKJTEK. IPX7 waterproofing and ear hooks designed to stay put.
• Best for siblings or a spare pair → ProCase 2. The two-pack covers two kids or one kid plus a backup.
• Best for travel packing → both, for different reasons. ProCase folds flat into a backpack; WHYKJTEK's case is pocket-sized with a battery readout.
• Best for sensory or autism-related sound sensitivity → ProCase 2. It's designed for exactly that use case.
In my opinion, this isn't a close call once you know the job. If you're equipping a child for loud environments, I'd buy the ProCase 2 — the NRR 24dB rating, the 2–8 year fit range, the padded headband and the folding design are all aimed at the same goal, and the two-pack makes it an easy family purchase. If you're an adult who wants ANC, long battery life and a workout-proof fit, I'd buy the WHYKJTEK BX30 instead. The only way to get this wrong is to buy one product for the other product's job.
FAQ
It's designed as an adult audio product with an ear-hook fit and no hearing-protection rating, so it isn't a substitute for certified kids' earmuffs like the ProCase 2.
WHYKJTEK states up to 8 hours in the earbuds and over 90 hours total with the charging case, with a 10-minute quick charge giving about 2 hours. The case recharges in roughly 2 hours.
They serve different buyers, so value depends on the job. Check the current price on Amazon for both and compare against what you actually need — child hearing protection or adult ANC earbuds.
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