SEC ZF-169 Plus Bluetooth 5.0 Transmitter and Receiver, 3-in-1 Wireless 3.5mm Adapter for TV PC Headphones Speakers Home/Car Stereo Hands-Free Calling Sound System Bluetooth  (Black)

3-in-1 Transmitter and Receiver: In Transmitter mode, turn a non-Bluetooth TV, PC, CD player, iPod, MP3 / MP4 into Bluetooth transmitter. Receiver mode: Make non-Bluetooth speaker home or car music streaming sound system receive the audio from Bluetooth Audio sources (mobile phone etc.)How to connect to TV?Just plug the USB dongle into TV USB port, turn the switch to TX mode, connect 1 end of the provided Aux cable to the TX input on the dongle, connect the other end of the provides Aux cable to the TV audio output, then turn Bluetooth headphone to pairing mode.Why can’t connect other Bluetooth device?The Bluetooth device is connected to other Bluetooth signals, causing the Bluetooth channel to be occupied. Delete all connected record , connect it again.Why the sound is relatively low or there is noise? The audio cable is not properly inserted or the audio connection is unstable. Bluetooth dongle Plug the 3.5mmaudio cable first, then the other side of 3.5mm cable plug the Bluetooth device tightly.