3 in 1 bluetooth adapter bluetooth adapter for tv can be used as transmitter or receiver. In broadcast mode: TV, MP3 / MP4, PC, CD player. Non-bluetooth can pair with bluetooth speaker or headset using this bluetooth transmitter. In reception mode: it is ideal for broadcasting music at home or in the vehicle. And it supports TF card, play music in TF card or transfer data. 3.5mm jack + FM The bluetooth tv transmitter supports 2 connection methods. Normally 3.5mm audio jack for older stereos, speakers and televisions. And the FM connection is specially designed for cars without auxiliary socket. The car stereo will become a bluetooth device and connect your phone automatically when you set it to FM87.5 ~ FM108. LED Display and Long Runtime Unique design of LED visual screen can display different working states. Bluetooth TV transmitter contains a rechargeable 300mAH lithium battery. And it supports use while charging. The battery lasts up to 6 hours when fully charged. With a built-in antenna, 3.5mm bluetooth receiver and TV transmitter can reach 33 feet (10m) coverage without obstacles. Plug Play and hands-free calling Super easy to use, no external driver need to be installed. Bluetooth transmitter for car supports playing music on TF card (not included). It supports Windows, Mac OS, Linus. With the built-in microphone, the blutooth receiver can make hands-free calls (answer, reject, hang up). It also supports driving navigation. Bluetooth Version 5.0 and Non Latency Bluetooth 5.0 Jack Adapter not only ensures faster and more stable transmission, but also lower latency and high sound quality, and we offer 3.5mm AUX audio cables. Perfect for PC, TV, laptop, home stereo, headset, smartphone, MP3 player, wired headset, etc.