1、Bluetooth 5.0, the signal is more stable, the connection speed is fast, and the transmission is not delayed. 2、The LED display is more convenient to operate and has lower power consumption. 3、Suitable for TVs, laptops, desktop computers, projectors, bluetooth stereos, bluetooth headsets, tablets, mobile phones, wired speakers, wired headsets, etc. 4、Dual antennas, stable transmission. The transmitting mode supports the simultaneous connection of two speakers or earphones, and a CODEC multi‑point connection is used at the same time, and the receiving mode supports the 1‑to‑2 function to connect two mobile phones. 5、Support APP control. Support for APTX/AAC/SBC/APTX/HD/APTX/LLDualstream. Item Type: Audio Transmitter Receiver Material: ABS Bluetooth Version: V5.0 Bluetooth Chip: CSR 8675 Communication Distance: RX: Approx. 120m / 393.7ft, TX: Approx. 120m / 393.7ft Bluetooth Protocol: A2DP, AVRCP Power Supply Mode: Type-C interface Working Temperature: -10℃-55℃ Output: optical input, optical output, AUX input, AUX output Suitable for: TV, laptop, desktop computer, projector, Bluetooth stereo, Bluetooth headset, tablet computer, mobile phone, wired audio, wired headset, etc. How to Use: Connect via Bluetooth Pairing 1. First connect the Type-C power cord to the power supply, and then connect it to the product. After power on, the bluetooth audio receiver successfully enters the pairing state. 2. Turn on the bluetooth function of the mobile phone or other device, search for the device, and click Connect after the search is successful. 3. After the connection is successful, the next time you use it, you only need to press the power button for 3 seconds to turn on the phone and it will automatically connect to the mobile phone or other equipment you used last time. The APP can be downloaded by scanning the QR code on the packaging box with a mobile phone, and after opening the bluetooth audio receiver, the device can be controlled through the APP. 1 x Host 1 x Manual 1 x Charging Cable 1 x Audio Line 1 x Adapter Cable 1 x Fiber Optic Cable