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If you want a single wearable that silences the world and plays audio all night without pressing on your ears, choose MUSICOZY 3D; if you need earbuds that stay locked in while you sweat and keep going for days between charges, choose Matast Earbuds.
• MUSICOZY 3D — biggest strength: it merges a blackout sleep mask with flat, side-sleeper-friendly Bluetooth speakers, so you get audio and total darkness in one piece with up to 14 hours of playtime.
• MUSICOZY 3D — biggest trade-off: it's a purpose-built sleep and travel tool, not a fitness device — no waterproof rating, no touch controls, and no charging case.
• Matast Earbuds — biggest strength: true wireless sport earbuds with IP7 water resistance, secure 45° ear hooks, and up to 60 hours of total playtime with the case.
• Matast Earbuds — biggest trade-off: they're in-ear buds with no sleep-mask function, so they won't block light or suit people who hate things inside their ears at night.
• Who each is for: MUSICOZY 3D for sleepers, side sleepers, travelers and anyone fighting snoring or noisy neighbors; Matast for gym-goers, runners and commuters who want music and calls on the move.
MUSICOZY 3D is a hybrid: a Bluetooth sleep eye mask that doubles as a pair of ultra-thin on-ear headphones. The design leans on premium memory foam and a smooth ice-silk lining, and the whole point is that you barely notice it's there. There are no bulky panels digging into your face — the central panel and the silicone-covered speakers sit flat enough that side sleepers can roll over without a hard lump pressing into their temple. That's the specific problem this product was built to solve, and it's the reason it exists at all.
On the audio side, you get Bluetooth 5.4, a 33-foot wireless range, 32-ohm impedance and a 20Hz–20kHz dynamic driver. That's a full-range spec, and the pitch is rich bass with clear treble — perfectly reasonable for music, audio books, meditation tracks or a podcast you want to drift off to. Battery life is the headline: about 1–2 hours of charging gets you 14 hours of talk or music time, which is enough to cover a full night. And if it dies while you're asleep, it won't buzz you awake — a small detail that matters more than it sounds. The package includes the mask, a charging cable, a manual, two pairs of earplugs and a carrying bag, backed by a one-year warranty.
Who should buy it? Side sleepers, people whose partners snore, frequent flyers, nappers, and anyone who wants to shut out light and noise at the same time. It's also genuinely good for kids' bedtime reading or meditation. Who should skip it? If you want earbuds for the gym, running in the rain, or taking calls mid-workout, this isn't that product. There's no waterproof rating here, no noise-cancellation circuitry (the isolation comes from the mask plus the included earplugs), and the controls are simple buttons rather than touch. It's a sleep tool first.
Matast Earbuds are sport-first true wireless earbuds. The design is built around movement: flexible 45° ear hooks, three sizes of ear tips (S/M/L) and an IP7 waterproof nano-coating on the internal components, which means sweat, rain and a splash from a water bottle aren't a problem. If you've ever had a bud pop out mid-sprint, the hook design is exactly the fix. They come in a Lily powder color with a plastic charging case and a modern sport profile.
The audio hardware is unusually specific for this category. Matast uses a four-sound-chamber layout with 14.2mm graphene drivers, and the frequency range runs 18Hz–25kHz — wider at both ends than the 20Hz–20kHz norm. The claim is 30% larger drivers than conventional types and a 70% boost in audio frequency, which translates to transparent highs and deep bass. For calls, there are four microphones with ENC noise cancelling, aiming to lift vocal clarity and cut background noise so you sound clear on the other end. Bluetooth 5.4 handles the connection, with support for HFP, A2DP, HSP and AVRCP, a 15-metre range, and lower latency than 5.3.
Battery life is where Matast pulls away from most rivals. Each earbud runs about 8 hours per charge; the case recharges them six times for up to 60 hours of total playback. A 10-minute USB-C top-up adds roughly 2 hours. The case has a dual LED digital display that flashes during charging and shows the battery percentage from 1% to 100%, so you're never guessing. A hall-effect sensor means the buds power on and auto-reconnect to your last device the moment you open the case, and touch controls handle play/pause, volume, calls and voice assistant. There's also a mono mode, so you can share one earbud or listen with one ear free.
Who should buy it? Runners, gym-goers, cyclists, commuters and anyone who takes a lot of calls on the move. Who should skip it? If your goal is sleeping with audio on, these aren't it — they're in-ear buds with no light-blocking function and no sleep-specific comfort engineering. And if you dislike anything sitting inside your ear canal, the ear-hook fit won't convince you otherwise.
• Best for sleep and blocking light → MUSICOZY 3D. The blackout mask plus flat speakers is a combination Matast simply doesn't offer.
• Best for side sleepers → MUSICOZY 3D. The ultra-thin speakers and silicone cover are designed so you can lie on your side without a hard panel digging in.
• Best for workouts and running → Matast Earbuds. IP7 waterproofing and 45° ear hooks are built for sweat and movement; MUSICOZY 3D isn't.
• Best for total battery life → Matast Earbuds. Up to 60 hours with the case versus 14 hours on a single charge.
• Best for a full night of playback → MUSICOZY 3D. 14 hours covers sleep; 8 hours per earbud may not.
• Best for calls and voice clarity → Matast Earbuds. Four mics with ENC noise cancelling are aimed squarely at phone calls; MUSICOZY 3D lists no noise control.
• Best for travel and noisy environments → MUSICOZY 3D. The mask-plus-earplugs combo targets planes, snoring partners and noisy neighbors.
• Best for sharing audio → Matast Earbuds. Mono mode lets you hand one earbud to someone else; MUSICOZY 3D has no equivalent.
If I had to pick one, I'd choose Matast Earbuds — but only because they cover more of everyday life. In my opinion, the IP7 rating, the secure ear-hook fit, the 60-hour case and the four-mic call setup make them the more versatile buy for workouts, commuting and calls. That said, MUSICOZY 3D wins outright if your actual problem is sleep: nothing in the Matast design addresses darkness, side-sleeping comfort or a full night of playback. Buy Matast for movement, MUSICOZY 3D for rest. If you're still torn, check the current price on Amazon and let your primary use case decide.
FAQ
That's their design intent. Flexible 45° ear hooks plus three ear-tip sizes are meant to keep them secure, and the IP7 waterproof coating resists sweat and rain. MUSICOZY 3D has no waterproof rating at all.
Matast Earbuds, by a wide margin — up to 60 hours total with the charging case, versus 14 hours on a single charge for MUSICOZY 3D. For a single overnight session, though, MUSICOZY 3D's 14 hours is the safer bet.
It supports talk time and Bluetooth 5.4 with a 33-foot range, so calls are possible — but the button controls and lack of waterproofing make it a poor fit for gym use. Matast Earbuds, with four mics and touch controls, are the better call-and-workout option.
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See also: ONTA Kids vs HAOMUK Replacement Earpads: Small on Ear, XKDUN Open Ear Headphones vs NDO Earbuds, FLOKYU Kids Headphones vs Botesty Sound Headphones, Maitys 6 vs Siowen Sleep Earbuds: Passive Noise Reduction