Bluetooth 5.4 Audio Receiver U Disk RCA 3.5Mm AUX USB Stereo Music Wireless Adap
●Bluetooth version: 5.4. ●Bluetooth protocol: AVRCP, A2DP. ●Support: U disk;hands-free calling. (Only receive function, does not support transmit function). ●Signal-to-noise ratio: more than 90dB. ●Output power: 28mW RL=16Ω.