2-in-1 Bluetooth AUX Audio Receiver MP3 Adapter

• 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 

• 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 

• 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)

• Play pause: short press MFB
• Previous song: VOL - long press for 2 seconds
• Next song: VOL+ long press for 2 seconds

• 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

• 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)

Package Includes:

• One (1) 2-in-1 Bluetooth AUX Audio Receiver MP3 Adapter
• One (1) Two-Way AUX Receiver