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If you want to add wireless Bluetooth audio to a pair of Bose QuietComfort 25 headphones you already own, choose YOCOWOCO aptX; if you need to give a PS5 or a PC a proper wireless audio transmitter for your headphones, choose Ugreen USB-C.
• YOCOWOCO aptX — biggest strength: it is a purpose-built replacement part for one specific headphone, adding Bluetooth 5.0, dual-device pairing, a built-in mic and physical volume/call buttons to a QC25 that was never wireless.
• YOCOWOCO aptX — biggest trade-off: it fits only Bose QuietComfort QC25 headphones. If you own anything else, it is useless to you.
• Ugreen USB-C — biggest strength: it is a general-purpose Bluetooth 6.0 audio transmitter with aptX Adaptive support, LE Audio modes and a Qualcomm chip, built to plug into a PS5, PC or iMac.
• Ugreen USB-C — biggest trade-off: it only handles audio devices. No keyboards, no mice, no TV, no car, no mic, and none of the LE Audio modes work unless your headphones support LE Audio or LC3.
• Pick YOCOWOCO aptX if you want to keep using your QC25s on the move, untethered.
• Pick Ugreen USB-C if you want to cut the cord on a console or computer.
This is not a general accessory. The YOCOWOCO adapter is shaped to sit in the arc of a Bose QC25 and only a Bose QC25, using a 2.5 mm audio connector on the headphone side and USB Type-C for charging. It exists because the QC25 shipped as a wired headphone with a detachable cable, and plenty of owners would rather keep the noise cancelling they like than buy a whole new headset.
What it does well is the everyday stuff. There are four physical buttons on the unit, so power, play/pause, volume and call answer/hang-up are all handled by touch rather than by pulling out your phone. The built-in microphone means you can actually take a call without reaching for anything. Bluetooth 5.0 with Dual Link lets it hold two devices at once, so switching between a laptop and a phone is less of a chore. The internal battery is rated at roughly 10 hours of playtime after about a 2-hour charge, which is a realistic single workday or a couple of long flights.
The codec story is the headline for anyone searching this comparison. The adapter supports aptX and aptX HD for near-lossless music, plus aptX LL for audio-video sync. Two caveats matter here. First, aptX only activates if the phone or player on the other end supports aptX too — a non-aptX source falls back and you lose the benefit. Second, the manufacturer's own notes say to remove the adapter before charging, and to fully charge it before first use.
Who should buy it: QC25 owners who want wireless audio, a mic and on-headset controls without giving up their headphone. Who should skip it: anyone who does not own Bose QC25 headphones — the QC15 and QC2 are explicitly not supported — and anyone who wants a transmitter for a console or TV.
The Ugreen BT701 is a different species of product. It is a USB-C Bluetooth transmitter that plugs into a PS5, a gaming console, a PC or an iMac and adds Bluetooth audio output where there was none. No drivers, no setup dance — plug it in and pair your headphones.
Under the hood it runs a Qualcomm QCC3086 Bluetooth 6.0 chip, and the practical payoff is fast pairing and a connection that holds up in crowded wireless environments with minimal dropouts. Codec support is broad: aptX Adaptive, aptX HD, aptX and SBC, with the adapter matching the best format the connected device can handle.
The interesting part is the LE Audio mode switch. Flip it into LE Audio and you choose between Low Latency and High-Quality. Low Latency is the default and is aimed at gaming and video, where lip-sync and hit-registration timing matter. High-Quality trades a little of that for richer detail on music. There is also Classic Bluetooth mode on a side toggle for headphones that do not support LE Audio or LC3 — and that toggle matters, because LE mode will not pair successfully with non-LE gear.
Two more features worth knowing. Classic Bluetooth mode supports dual-device connection, so two sets of headphones can be linked at once, though aptX HD does not work in dual-device mode. LE Audio mode goes further with one-to-many broadcasting, which is the feature behind group listening: multiple people on their own headphones for a movie night or co-op session. For Auracast-compatible headphones you connect via Unicast first, then switch to Auracast mode for other devices.
Who should buy it: PS5 and PC users who want wireless headphone audio with gaming-grade latency options. Who should skip it: anyone hoping to connect a mouse, keyboard, TV, car stereo or microphone — none of that is supported — and anyone whose headphones lack LE Audio or LC3 and who therefore cannot use the LE modes at all.
• Best for reviving a specific old headphone → YOCOWOCO aptX. It is engineered around the Bose QC25 and nothing else.
• Best for PS5 or PC wireless audio → Ugreen USB-C. It is a plug-and-play transmitter for consoles and computers.
• Best for taking calls → YOCOWOCO aptX. The built-in mic and call button are on the headset itself.
• Best for lowering game lag → Ugreen USB-C. LE Audio Low Latency mode is designed for exactly this.
• Best for group or shared listening → Ugreen USB-C. LE Audio one-to-many broadcasting lets several listeners share one source.
• Best for on-headset control → YOCOWOCO aptX. Four buttons handle volume, playback and calls without touching your phone.
• Best for source flexibility → Ugreen USB-C. aptX Adaptive, aptX HD, aptX and SBC cover far more devices than a single-headphone adapter can.
• Best for battery life → YOCOWOCO aptX. Around 10 hours of playtime on a roughly 2-hour charge, versus the Ugreen drawing power from the host device.
If I owned Bose QC25 headphones and wanted them wireless, I would buy the YOCOWOCO aptX adapter — it is the only one of the two that physically fits, and the mic, buttons and Dual Link make it a complete upgrade rather than a dongle. If I were setting up a PS5 or a desktop PC for headphone audio, I would buy the Ugreen USB-C, because LE Audio low-latency mode and the Qualcomm Bluetooth 6.0 chip are the features that actually matter on a console. These are not competitors so much as two answers to two different questions. Match the product to the device you already own, not the other way round. Before ordering, check the current price on Amazon for whichever one fits your setup.
FAQ
No. It fits Bose QuietComfort QC25 headphones only. The manufacturer states plainly that it does not fit the QC15, and points QC15 owners toward a different model.
No. It supports Bluetooth audio devices only — headphones and speakers. Mice, keyboards, TVs, cars and microphone use are all outside its scope.
Only if the device you pair with also supports aptX. Both ends need it. If your phone does not support aptX, the adapter still works but you will not get the aptX benefit.
No. LE Audio and LC3 support are required on the headphones or speaker side. If yours do not support them, switch the side toggle to BR for Classic Bluetooth mode and pair that way.
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