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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want a headset built for all-day work calls with a detachable boom mic, one-click mute and the ability to stay paired to two devices at once, choose EMEET AirFlow Open Ear; if you need a lightweight, retro-styled on-ear pair with a semi-open build, strong bass tuning and simple physical knob controls, choose Decumeby Retro Headphones.
• EMEET AirFlow Open Ear — biggest strength: open-ear air-conduction design with a detachable boom mic, ENC noise cancelling and multipoint pairing over Bluetooth 5.3, plus a USB dongle for low-latency connection to a computer.
• EMEET AirFlow Open Ear — biggest trade-off: it's the heavier, more accessory-dependent option (299 g, and it ships with a dongle, charging station, cable and mic boom to keep track of), and its tuning is aimed at clarity for voice rather than dramatic bass.
• Decumeby Retro Headphones — biggest strength: a 40mm dynamic driver tuned for deep low end, a semi-open on-ear design, dual independent left/right knobs, and multipoint so it can hold two devices at once.
• Decumeby Retro Headphones — biggest trade-off: no active noise cancelling and no boom mic — it relies on a built-in mic only, and its listed battery life is 20 hours versus EMEET's longer figures.
• Who each pick is for: EMEET for remote workers, call-heavy users and anyone who hates things in their ear canal; Decumeby for casual listeners who want a retro look, punchy bass and tactile knob control.
The EMEET AirFlow is, first and foremost, a work headset. The open-ear, air-conduction design sits outside the ear canal rather than plugging it, and EMEET says the shape was developed around an analysis of 2,560 ear shapes with ultra-soft silicone pads. That matters if you spend hours a day on calls and find in-ear buds get itchy or sore. You keep your ear canal open, so you can still hear a colleague walk up behind you or a doorbell — a genuinely useful trait in a home office.
The calling hardware is where it pulls ahead. There's a detachable boom microphone, so you can clip it on for meetings and take it off for music, and a one-click mute when you need to say something off-mic. EMEET's VoiceCore algorithm works on dual-channel noise reduction, which is the part that usually decides whether people on the other end describe you as "clear" or "underwater." On the spec sheet, connection is Bluetooth 5.3 with multipoint pairing for switching between two devices, plus a USB dongle if you want a more stable link to a laptop, and EMEET quotes 40ms low latency. Battery is quoted at up to 20 hours of talk time and 40 hours of playback, with a 5-minute charge giving an hour of use. It's IPX5 water resistant, has smart touch controls and an EQ you can adjust in the EMEET TUNE app — though EMEET notes the app isn't required to use the headphones.
Buy it if you take a lot of calls, want your ears left open, and value a real boom mic and mute button over thumping bass. Skip it if you mainly want to lose yourself in music, prefer a traditional over/on-ear fit, or dislike managing accessories — at 299 g with a dongle, charging station and mic boom, it's a kit, not a single object.
The Decumeby Retro Headphones go the other direction entirely: character over call quality. The headline is bass. A 40mm long-stroke dynamic coil driver with a high-damping composite diaphragm, a resonant frequency pushed down to 60Hz and low frequency extension to 17Hz — that's a design brief written for people who want to feel low end, not just hear it. The semi-open structure is a deliberate compromise: it keeps some of the airiness of an open design while retaining a degree of listening privacy.
The other genuinely interesting bit is control. Instead of touch panels, you get two independent knobs, one on each side: the right knob handles volume, the left handles track skipping, and both handle play/pause and call control. Rotate clockwise to go up or forward, anticlockwise to go down or back. It's a physical, predictable interface that many people prefer to tapping a touch zone and hoping. The look is vintage — transparent blue shell, foam ear pads, adjustable headband, left/right rotation and a 6° earmuff adjustment that adapts to your ear angle. Two sets of foam pads come in the box.
On connectivity it's Bluetooth 6.0 with a quoted transmission speed up to 990kbps, roughly three times standard SBC/AAC, which is the basis for its high-resolution audio claim. Multipoint is supported, so two devices stay connected at once, and there's a wireless sharing mode for splitting audio with someone nearby. Battery is 20 hours via USB-C, with a 200mAh cell and a 10m range.
Buy it if you want a fun, retro-looking on-ear pair with real bass, tactile knobs and two-device pairing for casual listening. Skip it if you need noise cancelling (there is none), a boom mic, or long talk-time endurance — 20 hours total and a built-in mic only is the honest picture.
Side-by-Side: Which Should You Choose?
• Best for calls and meetings → EMEET AirFlow Open Ear. Detachable boom mic, one-click mute, ENC with the VoiceCore algorithm, and 20 hours of quoted talk time.
• Best for long sessions → EMEET AirFlow Open Ear. Open-ear comfort and up to 40 hours of playback, plus a 5-minute charge for an hour of use.
• Best for simplicity → Decumeby Retro Headphones. Two knobs, no app, no dongle, no accessories to manage.
• Best for multipoint switching between a laptop and a phone → both. Each supports connecting two devices at once; EMEET adds a USB dongle option for computers, Decumeby relies on Bluetooth alone.
• Best for wearing around other people → EMEET AirFlow Open Ear. The design targets anti-sound-leakage for privacy on calls; Decumeby's semi-open build trades some of that away for openness.
• Best for durability against sweat and light rain → EMEET AirFlow Open Ear. IPX5 rating; Decumeby lists no water-resistance rating.
• Best for a distinctive look → Decumeby Retro Headphones. Transparent blue shell and vintage foam-pad styling versus EMEET's plain black silicone build.
In my opinion, if you're buying one pair and your day involves talking to people, get the EMEET AirFlow Open Ear. The detachable boom mic, mute button, ENC processing, multipoint pairing and long battery figures are all pointed at the thing that actually ruins work calls: sounding bad to the other person. The open-ear fit also solves the sore-ears problem that pushes a lot of people away from buds.
I'd pick the Decumeby Retro Headphones only if music is the priority and calls are occasional. It looks like nothing else here, the knobs are a joy compared to touch controls, and the bass tuning is clearly the point of the design. Just go in knowing there's no noise cancelling and no boom mic. Either way, check the current price on Amazon before you commit — that's the one variable I can't speak to.
how to pair multiple headphones
Pairing multiple headphones usually means pairing one phone or computer to several headsets one at a time, then switching the active output. Both of these support Bluetooth multipoint, which lets each headset hold two connected devices at once and switch between them without re-pairing.
how to pair multiple headphones iphone
On iPhone you connect each headset through the Bluetooth settings menu, one at a time. Multipoint on the headset — not the phone — is what lets you jump between your iPhone and a second device like a laptop, so both the EMEET AirFlow and the Decumeby Retro can do this.
how to pair multiple headphones on ipad
The process on iPad is the same as iPhone: open Bluetooth settings and connect each device individually. If you want audio on two headsets at once, that depends on the source device's sharing feature rather than the headphones; Decumeby does list a wireless sharing mode for passing sound to someone nearby.
how to pair multiple bluetooth headphones
You can't make one audio stream play through several separate Bluetooth headsets unless your source device supports multi-output. What you can do is pair several headsets to your devices and use multipoint to switch quickly — which is exactly what the two-device multipoint support on both of these is for.
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