1. It can be used as a Bluetooth audio transmitter to transmit your TV audio (TV is required a 3.5mm output port or L/R output ports) to your Bluetooth headset or headphones to avoid disturbing others at night.
2. It can be used as a Bluetooth audio receiver to turn your old speaker without Bluetooth into a wireless Bluetooth speaker, for some old cars, you can transmit your phone music through this item to the car's AUX audio system, then your old car comes with wireless Bluetooth function.
3. It can be used as USB and TF card (also called Micro SD Card) player, insert USB flash disk or TF card, the music will be transmitted to your wired/wireless headphones, wired/wireless speakers or car AUX stereo system. Supports mp3/wav/wam/ape/flac audio formats.
Note: Does not support NTFS.
4. It is equipped with an LCD screen that can display the current mode in use: RX, TX, USB and TF card, playback time for USB and TF card, and the volume level.
5. It comes with a big knob and HD microphone.
Turn On/Off: There are 3 small Buttons next to the knob, press and hold the middle buttons for 2 seconds (don't move your finger while pressing it), then the adapter will be turned on and you can see the LCD screen light up.
RX Mode:
For your phone (tablet, laptop or smart TV with Bluetooth).
Push the side switch slider to the "RX" end (Receive Mode) and the LED light around the big knob will turn blue, use your phone or TV Bluetooth to search and pair it, the name is "M5". Connect your wired speaker or wired headset to the adapter and you can get sound from your phone or TV wirelessly.
TX Mode:
For your Bluetooth headset (headphones, soundbar or speaker).
Push the side switch slider to the "TX" end (Transmitter Mode) and the LED will turn red. Quickly set your headset to pairing mode (make sure it's in pairing status, this is important) and after a few seconds(10s-30s), the adapter will automatically pair the headset directly, connect the adapter to old TV (PC, MP3, Cassette player, CD or DVD, etc. without Bluetooth) via the audio cable, you can get sound from the old TV wirelessly.
If they can't pair with each other: Push the side switch slider to "TX" end firstly-> turn on the headset and set it to pairing mode-> then quickly turn on the adapter via the power button-> they will pair with each other after a few seconds (10s-30s).