•Product name: Bluetooth Transmitter
•Wireless Mode/Chip: Bluetooth 5.0/CSR8670
•Complies with:A2DP/AVRCP/HFP/HSP/GAIA/SBC/AAC/APTX/APTX-LL /APTX-HD
•Audio interface:3.5mm AUX & OPTICAL & COAXIA
•Antenna: dual external antennas
•Current: <150mA
•Input Power: 5V DC
•Working distance:Up to 164ft (50m) in open air and up to 50-70ft (20-30m) indoors.
•Working temperature: 0 ~ + 40 ° C