This is DC 12V Bluetooth 4.0 PAM8610 Audio Receiver Stereo Amplifier Board 2x10W Module Board. Distortion-free sound can achieve good range with BLE 4.0 Standard. Equipped with a 2.1 DC power interface. Bluetooth V4.0, high software compatibility. The module has 3 buttons for adjustment for convenient and easy operation.

Specifications : 

• Product - Bluetooth Module
• Model No - PAM8610
• Version - Bluetooth V4.0
• Frequency Range - 2.4Ghz
• Input type - DC
• Output type - Screw Connector 
• Input Voltage - 12V DC
• Input Current - 2A
• Audio Type - Stereo 
• Speaker Output Power -  10W

Features :

• Low Power Consumption.
• Version V4.0
• Stereo Speaker Output 
• Home appliances.
• Wireless Connectivity.