We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-10-01 · 7 min read · Independent comparison
If you want a self-contained pair of true wireless earbuds that works straight out of the box and is built for kids and small ears, choose AMAFACE Earbuds; if you need a Bluetooth adapter that turns your existing wired IEMs into wireless tws headphones, choose EZ EAR KBEAR BT15.
• AMAFACE Earbuds — biggest strength: A complete, ready-to-wear TWS package with a cartoon piggy-cat charging case, IPX5 sweat resistance, touch controls and a claimed 5–6 hours per charge plus roughly 32 extra hours from the case.
• AMAFACE Earbuds — biggest trade-off: Its fit and tuning are aimed at small ears and casual listening, and it is explicitly not for swimming, so serious audiophile listening is not the point here.
• EZ EAR KBEAR BT15 — biggest strength: Bluetooth 5.4 with LE Audio support and a 15-meter range, letting you convert compatible 2-pin wired IEMs into wireless tws headphones with about 6 hours per charge and four extra case recharges.
• EZ EAR KBEAR BT15 — biggest trade-off: It is an adapter only — no drivers of its own, no noise control, and it only works with the listed 2-pin IEM models, so you must already own compatible earphones.
• Who AMAFACE Earbuds is for: Kids, small-eared adults, and anyone who wants simple everyday wireless earbuds for music, calls, running and gym use.
• Who EZ EAR KBEAR BT15 is for: IEM owners who love their wired Moondrop, KZ, Truthear, Simgot or 7Hz earphones and want to cut the cable without buying new buds.
The AMAFACE K64 Piggy Cat is a fully self-contained true wireless set. Everything you need is in the box: the earbuds, the cartoon charging case, three sizes of silicone tips, a USB Type-C cable and a manual. You take the two buds out, they pair with each other automatically, and then you connect them once in your phone's Bluetooth settings. That is the whole setup, and for a kid or a non-technical adult, that matters more than any spec sheet.
Under the hood it runs Bluetooth 5.0 with a Qualcomm chip and CVC8.0 noise reduction, with a stated connection time of about five seconds and a 10-meter working range. Audio is handled by a dynamic driver with 16-ohm impedance, and the listed frequency range is 15M. Touch controls cover play/pause, volume and track skipping, calls interrupt and resume music automatically, and the case plus buds together are quoted at up to 5–6 hours per charge with roughly 32 extra hours from the case. Charging takes about 1.5 hours.
EZ EAR KBEAR BT15: Who It's For
The KBEAR BT15 PRO is not a pair of earbuds. It is a Bluetooth adapter module with a 2-pin plug, and that single fact decides who should buy it. You unplug the cable from your wired in-ear monitors, plug the module into the earpieces, hook it over your ears, and your wired IEMs become wireless tws headphones. The manufacturer lists compatibility with a long roster: KZ ZST, AS10, ES4, ZST-X, EDX and ZSN; Moondrop Chu 2, Aria, Chu, Blessing 3, Kato, Aria 2 and Dusk; Tangzu Wan'er; Truthear x Crinacle Zero, Hexa, Zero and Nova; Kiwi Ears Cadenza and Orchestra Lite; Simgot EM6L, Supermix 4, EW200 and EA500LM; and 7Hz Zero 2. If your IEM is not on that list, this product is not for you.
For the people it does fit, the spec story is compelling. Bluetooth 5.4 with LE Audio support is quoted at roughly 15% lower power consumption than Bluetooth 5.2, which the manufacturer says extends battery life. You get about 6 hours of use on a full charge, and the charging case adds four full recharges. The connection is rated to 15 meters, and the module is specifically pitched at reducing playback interruptions and audio stuttering. A red flashing light means low power, red steady means charging, green means full — a genuinely useful detail for a device with no screen.
Two honest caveats. There is no active noise control here; the noise control field is listed as none, so isolation depends entirely on the IEMs you attach. And the listed audio driver type is a balanced armature driver, which is worth checking against how you intend to use it. Buy it if you already own a compatible IEM and want to free it from the cable. Skip it if you need a standalone pair or you want noise cancelling.
• Best for kids and small ears → AMAFACE Earbuds. The K64 is explicitly designed for small ears and the manufacturer says it suits children as well as small-eared adults.
• Best for a complete out-of-the-box experience → AMAFACE Earbuds. Buds, case, tips and Type-C cable are all included; there is nothing else to own first.
• Best for total battery runtime → AMAFACE Earbuds. About 5–6 hours per charge plus roughly 32 hours from the case beats the BT15 PRO's 6 hours plus four case recharges in raw hours.
• Best for workout sweat → AMAFACE Earbuds. IPX5 sweat resistance is a stated feature; the BT15 PRO's weather resistance is not specified.
• Best for sound quality potential → EZ EAR KBEAR BT15. It inherits the tuning of whatever compatible IEM you plug in, which will generally outclass a casual-listening dynamic driver.
• Best for connection stability and range → EZ EAR KBEAR BT15. Bluetooth 5.4 versus 5.0, and 15 meters versus 10 meters.
• Best for lower power draw → EZ EAR KBEAR BT15. LE Audio support is quoted at around 15% lower consumption than Bluetooth 5.2.
• Best for people who already own wired IEMs → EZ EAR KBEAR BT15. It exists purely to make them wireless.
In my opinion, the AMAFACE Earbuds are the buy for most people reading this, because most people want earbuds, not an adapter. It is complete, simple, kid-friendly, sweat-resistant and generous on battery, and there is nothing extra to purchase. I would only steer you to the EZ EAR KBEAR BT15 if you already own one of the listed 2-pin IEMs and genuinely love how it sounds — in that case the BT15 PRO is a smart way to keep that sound and lose the cable.
Whichever you pick, check the current price on Amazon before deciding, and confirm your earphone model against the BT15 PRO compatibility list first.
how to pair tws headphones
With the AMAFACE Earbuds, take both buds out of the charging case; they connect to each other automatically, then you open your phone's Bluetooth settings and pair them in one step. The manufacturer quotes about five seconds for the connection. For the BT15 PRO, plug the 2-pin module into your IEMs and pair the module the same way.
how to connect tws headphones
Keep the buds within 10 meters of your device on the AMAFACE set — beyond that the manufacturer says the signal will be interrupted — and within 15 meters on the KBEAR BT15 PRO. Both are wireless-only with no headphone jack, so a Bluetooth source is required. The AMAFACE set is stated as compatible with all Bluetooth stereo devices.
how to use tws headphones
On the AMAFACE K64, everything runs through touch control: play and pause, volume, and track skipping, with calls automatically pausing and resuming your music. The BT15 PRO uses remote control instead, and its status is shown by light — red flashing for low power, red steady while charging, green when full.
how to reset tws headphones
Neither data sheet documents a reset procedure, so I would not guess at one. For the AMAFACE set, the manufacturer's guidance for charging trouble is to clean the charging port and, if you use the buds infrequently, charge them once a month to keep them working normally. For anything beyond that, contact the brand through its stated warranty channel.
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See also: SONY WH-CH520 vs Ortizan Open Ear Headphones, BASN Bsinger PRO vs Jxrev Earbuds, ELECDER i37 vs T-fun Active Noise Cancelling, Micool Ear vs Avid Products AE-36: On Ear Headset