1X(1. Auto-On: perfect for use in a car or other situations where you want it to have an auto-on function when you connect it to a source.
2. Dual Device Link: Pair your smartphone and tablet at the same time and stream music from any stereo system that supports standard 3.5mm or RCA jacks. Connect two Bluetooth devices at once to listen to music, make calls, and more.
3. Connect two devices: Support to connect 3.5mm o port and 2 RCA o ports at the same time.
4. Hands-free calling and navigation broadcast: Built-in microphone for hands-free calling; a simple button to answer/redial/hang up/reject calls. In addition, the Bluetooth car adapter supports broadcasting voice ifications from existing navigation apps, so you 't have to look down at your phone to safe driving.
5. Wireless Music Streaming: Stream music in stereo to non-Bluetooth headphones and speakers.

Space-saving : Ultra-compact and , it is convenient to use with various devices.
Super stable connection: Our bluetooth o adapter is equipped with bluetooth 5.2 chip for stable pai, fast transmission and wide signal range (10m/33 ft). With 3.5mm AUX port and 2 RCA ports, it can connect non-Bluetooth car o system, home o, wired headphones/speakers, amplifier/home theater, etc. Then you can enjoy wireless Hi-Fi music streaming! e: It's just a bluetooth receiver, a transmitter. So you can't use it for your TV, keyboard, mouse.
Auto connect: When you turn it , this bluetooth receiver will automatically connect to the last paired bluetooth device.
3 keys: track/volume up, previous track/volume down, multi-function key ()
Bluetooth protocol: AVRCP, A2DP
Frequency range: 2400-2483.5MHz
Frequency Response: 20Hz-20kHz
Output : 28mW RL=16ohm
Signal-to-noise ratio:)