MAKINGTEC USB Bluetooth Transmitter Receiver with LCD Screen, 3-in-1 Bluetooth 5.0 Adapter Support TF Card & FM Transmit,3.5mm Bluetooth Adapter for PC, TV, Wired Speaker, Headphones, and Car

(BEST 6 in 1 BLUETOOTH 5.0 ADAPTER)This 5.0 Bluetooth adapter integrates the functions of Bluetooth receiving, Bluetooth transmission, TF card playback, USB in-line LED digital display, FM transmission (Frequency adjustable), and key control into one.
(SUPPORT FM TRANSMIT for CAR)FM transmission function is used to [upgrade] the car audio to a Bluetooth speaker, to achieve wireless music listening, navigation, and phone hand-free call, and the frequency is adjustable.
(SCREEN DISPLAY)Unique screen design can choose the Bluetooth headset or speaker to connect. The screen will show whether the product is in TX mode or RX mode, and there will also be the name of the Bluetooth connection to the product. You could insert the Bluetooth adapter into a USB jack directly, or can also insert it into a power adapter, very convenient.
(Transmission mode)TF/signal input from outside is transmitted to the Bluetooth headset or Bluetooth speaker through Bluetooth of this device. (playing on other Bluetooth devices)
(NO BATTERY and POWER VIA USB)This Bluetooth transmitter is powered via USB, with no battery so you don't need to charge it. If your TV hasn't a USB port, you can use any phone charger, PC USB, or another 5V USB outlet, then it will automatically turn on ('TX' 'RX' flashing) when the TV is turned on. When the 'TX' 'RX' isn't being flashed, it means the connection succeeds.