Features:
CSR8645 low power consumption, volume default to the maximum.
With call function.
VCC and GND are power supply pin; LN and LP connect with left loudspeaker; RN and RP connect with right loudspeaker.
COM is common port of the key, the other side of the key connect VOL+, VOL-, PREV, NEXT, PLY respectively.
M+ and M- connect with microphone positive and negative respectively.
Suitable for audio conversion, amplifier, car to improve Bluetooth function. Perfect solution to reduce noise.
 
Specifications:
Color: Green
Chip: CSR8645
Bluetooth: 4.0
5V Power Supply: Max power drive double 4 ohm 3W 
6.5V Power Supply: Max power drive double 4 ohm 5W
Size: Approx. 29 * 24 mm / 1.1 * 1 in
Package Weight: About 5g
 
Package Included: 
1 x CSR8645 Bluetooth 4.0 Receiver Module