The audio cable is inserted into TRANSMITTER for transmission mode, and the indicator light is blue. Bluetooth version: Bluetooth 5.0+EDR. Transmission mode (suitable for sending computer/TV/radio/MP3 audio to Bluetooth headset/stereo).
eBay
3.5mm AUX Compatibility – Universal input/output for easy integration. Audio Interface: 3.5mm AUX (Stereo In/Out). 2-in-1 Bluetooth 6.0 Audio Adapter – Model T67. Stereo DSP Audio – Supports Bluetooth stereo music with advanced DSP for crisp, clear sound.
eBay
Universal USB interface:USB 2.0/3.0/4.0. 1 Receiver. Compatible with Bluetooth-compatible with 4.1/4.2/5.0 devices. Bluetooth-compatible 4.1/4.2/5.0 automatically compatible match when the computer is Win8/Win8.1/10 system.
eBay
Low Latency High Fidelity Bluetooth Adapter V5.3. Connect the bluetooth receiver to the car's USB interface, and you can talk and listen to music through the bluetooth connection. Wired speaker Bluetooth playback allows ordinary speakers to upgrade Bluetooth speakers using adapters to receive high-definition without lag.
eBay
In transmitter mode, convert TV, PC, CD player, iPod, MP3 / MP4 into a Bluetooth transmitter. ★Transmitter Receiver 3-In-1: Bluetooth transmission mode (TX): Convert wired audio into Bluetooth signal, and transmit it to Bluetooth device for output.
eBay
Bluetooth 2.1+EDR. 1 x 3.5mm Audio Cable. Portable Design:With mini size,the feature of portable can let you carry them to anywhere you want. After matching success, you can use your phone to play music.
eBay
Function: Transmission, reception mode, U-disk TF card playback. -Equipped with the latest 5.4 smart Bluetooth chip, it does not lag and has better performance. -Suitable for various Bluetooth free devices, making life more colorful.
eBay
Bluetooth 5.0 Transmitter: Just Bluetooth Transmitter, not a Bluetooth Receiver. Applications: In Transmitter mode, turn a non-Bluetooth TV, PC, CD player, iPod, MP3 / MP4 into Bluetooth transmitter, convenient to use.
eBay