Multiple Application - Digital Optical + 3.5mm AUX + RCA Cable: Equipped with both digital optical and AUX interfaces, along come with TOSLINK SPDIF audio cable, 3.5mm AUX audio cable and RCA audio cable, it can satisfy all of your connection needs and match with various audio devices with both Bluetooth and non-Bluetooth function.Bluetooth 5.0 Transmitter & Receiver, APTXHD Low Latency: Bluetooth adapter with newest Upgarded CSR8675 chip powered by the latest Bluetooth 5.0. You can watch video while listening to wireless audio in a synchronized fashion and without any noticeable audio delay.Double Pairing + Auto Connection:Supporting dual-stream (TX mode & RX mode), transmission can connect two Bluetooth audio device and receiver simultaneously. the Bluetooth adapter has a memory function, will automatically connect to your devices that have been paired before when turning on.24H Long Play Time + 20M Long Distance: Bluetooth adapter adopts 600MAH battery standard, charging time is about 3 hours, RX service time could be at least 18H, TX service time could be 24hours. Support using while charging. Free cable use, the max wireless distance is more than 20 meters (no obstacles).LED Indicator & Button Control: 11 LED Indicator to prompt which status the bluetooth is using. RX mode: Click previous/next track key, increase/reduce volume by the long press, play/pause music by bluetooth adapter. TX mode: Mute or recovery, backhaul the device, double clicks to matching status quickly.(Note: The device enters into the sleep mode after 6 minutes under the unconnected status.)