40M Bluetooth Audio Transmitter Receiver HD Low Latency Wireless Bluetooth5.0 Adapter 3.5mm AUX Jack RCA USB for TV PC Headphone Features: It has 2 modes(Tx, RX) that can Bluetooth-enable nearly all the Audio devices in your home.40m Ultra long range - which ensures a stable connection without losing signal wherever you go in your big house.This 2-in-1 Bluetooth 5.0 Audio Adapter comes with Low Latency to virtually eliminate audio-visual lagSupport U Dsik play.Power-off memory function.Suitable for any devices(smartphone,earphone,speaker etc) any version of Bluetooth on the market. Package: 1 x Bluetooth Audio Adapter1 x 3.5mm jack to 2 RCA plug cables1 x Micro USB charging cable1 x user manual Note: Its because of sony"'"s Bluetooth headset/earphone/headphone uses a special encoding method, its not public for other devices to connect.So when you use sony"'"s Bluetooth headset/earphone/headphone to pair with our devices in bluetooth transmitter mode, it may takes longer time to pair.The pairing time varies on different model of Sony . But they can surely pair successfully with our devices. operation range can be affected by Wi-Fi routers, wireless TV adapters and also depends on the receiving devices. to achieve low Latency, your receiving device must also support Low Latency. Our bluetooth receiver transmitter will automatically turn off if there is no connection for a period of time