Bluetooth 4.1 Receiver 3.5mm Jack Aux Audio Receiver Adapter For Phone Headphone Music MP3 Bluetooth Car Kit Adapter

product manual:

Bluetooth version: Bluetooth 4.1

Interface type: 3.5mm

Battery specifications: 70mah rechargeable lithium battery

Product size: 5.9*1.5*1.2cm

Product bare weight: 12g (Bluetooth receiver + metal adapter)

Total weight: 25g 

Product features: Bluetooth receiver, car Bluetooth receiver, car Bluetooth receiver, AUX Bluetooth receiver, audio adapter

basic skills:

Voice prompt: support

One for two: support

Pairing timeout shutdown: The pairing state lasts for 5 minutes and then shuts down.

Low battery reminder: when the voltage is less than 3.2V, reminder once every 5 seconds, 3.1V shutdown

system status:

Power on and off: MFB long press for 3 seconds

Volume plus: short press VOL+

Volume minus: short press VOL-

Switch language: Double-click and hold MFB in the pairing state (red and blue to flash)

Music control:

Play pause: short press MFB

Previous song: VOL - long press for 2 seconds

Next song: VOL+ long press for 2 seconds

Telephone control:

Answer the call: Short press MFB when calling

Refuse to answer the phone: press MFB when calling

Redial without number: double-click the MFB button, then short press MFB to cancel the dial-out

Led light shows:

Boot pairing: red and blue lights alternately flash

Connection status: blue light flashes slowly (5 seconds 1 time)

Low voltage: red light flashes (0.5 seconds 1 time)