Ugreen BT501 USB 10 m Black vs Ugreen CM403 AUX Black

Comparison of BT501, CM403

24 specifications	A Ugreen BT501 USB 10 m Black Model BT501 View product	B Ugreen CM403 AUX Black Model CM403 View product
Features1 differ
Number of simultaneously connected devices (max)Known for one	—Unknown — not stated by the source	1
Host interfaceDiffers	USB	AUX
Bluetooth versionKnown for one	—Unknown — not stated by the source	5.0
Housing materialKnown for one	—Unknown — not stated by the source	Acrylonitrile butadiene styrene (ABS), Polycarbonate (PC)
Bluetooth profilesKnown for one	A2DP, AVRCP, HSP, HFP	—Unknown — not stated by the source
aptX audio decodingKnown for one	Yes	—Unknown — not stated by the source
Total Harmonic Distortion (THD)Known for one	0.1%	—Unknown — not stated by the source
FM band rangeKnown for one	2400 - 2483.5 MHz	—Unknown — not stated by the source
Signal-to-Noise Ratio (SNR)Known for one	90 dB	—Unknown — not stated by the source
Frequency rangeKnown for one	20 - 20000 Hz	—Unknown — not stated by the source
Transmission distanceKnown for one	10 m	—Unknown — not stated by the source
Compatible productsKnown for one	PS5, Nintendo Switch, Windows PCs, and macOS laptops. (Not compatible with Linux or PS4. Not compatible with AirPods Pro 2.)	—Unknown — not stated by the source
Poweridentical
Power source typeKnown for one	—Unknown — not stated by the source	Battery
Operating timeKnown for one	—Unknown — not stated by the source	8 h
Charging timeKnown for one	—Unknown — not stated by the source	1.5 h
USB poweredKnown for one	Yes	—Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	—Unknown — not stated by the source	92 mm
DepthKnown for one	—Unknown — not stated by the source	19 mm
HeightKnown for one	—Unknown — not stated by the source	11 mm
Batteryidentical
Battery capacityKnown for one	—Unknown — not stated by the source	145 mAh

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.