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We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-09-20 · 7 min read · Independent comparison
• Ugreen 5.3 biggest strength: True plug-and-play USB audio transmission for PS5, PS4, Switch, desktop PC and iMac, with aptX Adaptive-class low latency rated under 60ms and range up to 33 ft.
• Ugreen 5.3 biggest trade-off: Audio only. It sends sound, not files, and it needs a USB port on the source device, so a TV without usable USB audio output is out of the question.
• Avantree Oasis Plus 2 biggest strength: Purpose-built for TVs with Optical (SPDIF) or AUX output, with a physical remote for volume, two simultaneous headphones, and Optical passthrough so a soundbar can keep playing.
• Avantree Oasis Plus 2 biggest trade-off: It will not work with HDMI-only TVs, HDMI ARC/eARC, AV receivers, or hearing aids, and it doesn't do Auracast.
• Who each pick is for: Gamers and desk workers whose source is a console or computer → Ugreen 5.3. TV watchers who want private listening, shared listening or remote volume control → Avantree Oasis Plus 2.
The Ugreen 5.3 (model CM668) is a USB Bluetooth audio transmitter, and the whole design philosophy is "plug it in and forget it." You push it into the USB port of a PS5, PS4, Switch, desktop or iMac, put your headphones or speaker into pairing mode, and it connects automatically. No drivers, no software, no menu diving. For someone who has a great pair of Bluetooth headphones and a console that doesn't support them natively, that's the entire job done in under a minute.
The spec that matters most here is latency. Ugreen rates this adapter's aptX Adaptive support as reducing audio lag to under 60ms, roughly four times shorter than standard Bluetooth at around 220ms. In practice that's the difference between gunfire and dialogue landing where they should and landing a beat late. It supports aptX HD, aptX Adaptive, aptX and SBC, so it covers both high-quality listening and basic compatibility. Range is quoted at up to 33 ft (10 m) using Bluetooth 5.3 BR+EDR, which is enough to walk across a room without the connection breaking up, though walls and furniture will cut into that.
Buy it if your audio source is a console or computer with a free USB port and you want wireless headphone audio with minimal fuss. Skip it if your source is a television, if you need HDMI or optical connectivity, or if you ever need to move data rather than sound.
Avantree Oasis Plus 2: Who It's For
The Avantree Oasis Plus 2 solves a completely different problem: getting your TV's audio into Bluetooth headphones. It connects to your TV over Optical (TOSLINK) or a 3.5mm AUX cable, then streams that audio wirelessly to Bluetooth headphones or Bluetooth speakers. If you've been cranking the TV volume at night or straining to hear dialogue, this is the category of device that fixes it.
Where it pulls ahead of a generic dongle is in the details. There's a physical remote control, so you can adjust volume without touching the TV settings or getting up. It supports two Bluetooth headphones at once, which is the feature that makes it genuinely useful for couples or family members who want to watch together at different volumes. And it offers Optical passthrough, meaning your TV audio can go to an Optical soundbar and to Bluetooth headphones at the same time. It also supports aptX Adaptive and aptX Low Latency, so the audio stays in sync with the picture rather than trailing behind it.
But the compatibility limits here are strict and worth reading twice. The Oasis Plus 2 is for TVs with Optical or AUX output. It is explicitly not compatible with HDMI-only TVs, HDMI ARC or eARC, and AV receivers. There is no HDMI passthrough, only Optical. And it is not for hearing aids: it doesn't support Auracast, and Avantree points hearing-aid users toward a different model in its lineup. It's also a corded device, powered by an included 9V battery arrangement rather than running on its own internal rechargeable cell.
Buy it if you have a TV with Optical or AUX out and you want private or shared listening with easy volume control. Skip it if your TV is HDMI-only, if you're routing through an AV receiver, or if you need hearing-aid compatibility.
Side-by-Side: Which Should You Choose?
• Best for console gaming (PS5 / PS4 / Switch) → Ugreen 5.3. It's the only one of the two designed to plug into a console's USB port.
• Best for lowest latency → Ugreen 5.3 on paper, with a rated sub-60ms figure via aptX Adaptive; the Oasis Plus 2 counters with aptX Adaptive and aptX Low Latency support of its own.
• Best for two listeners at once → Avantree Oasis Plus 2. It connects up to two Bluetooth headphones simultaneously. Ugreen is a single-output transmitter.
• Best for voice chat while gaming → Ugreen 5.3. The included 3.5mm mic plus headset-mic switching is a feature the Oasis Plus 2 doesn't offer.
• Best for work-from-home calls → Ugreen 5.3. Windows auto-switching between Music and Talk modes for Zoom, Teams, Meet and Skype.
• Best for keeping your soundbar in the loop → Avantree Oasis Plus 2. Optical passthrough lets a soundbar and headphones run together.
• Best for portability → Ugreen 5.3. It's 10 g and about the size of a large USB stick. The Oasis Plus 2 sits near the TV with a remote.
• Best for someone with an HDMI-only TV or an AV receiver → neither. The Oasis Plus 2 rules those setups out, and Ugreen needs a USB audio source.
If I had to pick one, I'd buy the Ugreen 5.3 for myself. My audio life is consoles and a desktop, and a 10-gram USB stick that pairs instantly, keeps lag under 60ms and even handles work calls is the more versatile tool for that setup — and it travels in a pocket. But I'd recommend the Avantree Oasis Plus 2 without hesitation to anyone whose target is the television, especially a couple or a family that wants two headphones, a remote for volume and a soundbar that keeps working. Buy for your source device first. That single question settles this comparison faster than any spec sheet.
The Ugreen 5.3. It's a USB transmitter built for PS5, PS4, Switch, PC and Mac, with plug-and-play pairing and rated sub-60ms latency. The Avantree Oasis Plus 2 connects over Optical or AUX and isn't designed for consoles.
Only if your TV has an Optical (TOSLINK) or 3.5mm AUX audio output. It's not compatible with HDMI-only TVs, HDMI ARC/eARC or AV receivers, so check your TV's ports before buying.
Yes with the Avantree Oasis Plus 2, which supports up to two Bluetooth headphones simultaneously. The Ugreen 5.3 is a single-output transmitter, so it's one listening device at a time.
No. The Avantree Oasis Plus 2 explicitly does not support Auracast and won't work with hearing aids, and the Ugreen 5.3 is aimed at standard Bluetooth headphones and speakers. Avantree directs hearing-aid users to a different model.
Value depends on your source device, not on the adapters themselves: Ugreen 5.3 is the sensible spend for consoles and computers, Avantree Oasis Plus 2 for TVs with Optical or AUX. Check the current price on Amazon before deciding.
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