Item Type: Wireless Audio Transceiver Material: ABS Color: Black Technology: A2DP, AVRCP (receiver mode only) Bluetooth: 5.0 Bluetooth Transmission Distance: 10 meters Interface: 3.5mm, optical fiber, Mirco USB Battery: 300mAh polymer battery (built-in) Multi-Point Connection: Support one for two Package List 1 x Wireless Audio Transceiver 1 x 3.5MM Audio Cable 1 x Micro USB Charging Cable 1 x Fiber Optic Cable 1 x RCA Cable 1 x Instruction Manual 1Bluetooth transmit mode (TX), convert wired audio into Bluetooth signals, and transmit them to the Bluetooth device for output; Bluetooth receive mode (RX), receive Bluetooth signals, and transmit to wired audio through Bluetooth connections. 2Highfidelity audio output interface, dual fiber interface + 3.5MM audio interface + RCA red and white conversion interface, easy to achieve the use of different power amplifier audio equipment. 3Highperformance Bluetooth chip, using highperformance Bluetooth chip, Bluetooth 5.0, more stable transmission, strong signal, no pressure on Bluetooth transmission/reception. 4Support onefortwo function, transmit mode (TX), connect two Bluetooth headsets or speakers at the same time, share the same music, and watch the same movie. 5Receiving mode (RX), ordinary speakers turn into wireless bluetooth speakers, compatible with all kinds of old speakers, optical fiber/AUX connection as you choose, low latency and high-fidelity, enjoy CDlevel sound quality.