Bluetooth Stereo Audio Receiver Module, 3V-5V for Amplifiers Sound Recorder and Sound Circuit Electronic Hobby Kit. This is a Bluetooth audio receiver module, transmitting MP3 and other common audio formats' audio signals. It's simple to set up and use, and once connected to another Bluetooth system such as your phone or laptop, it can receive and translate signals into an output format compatible with speakers. It has three output terminals: L Out, R Out, and GND, to which you can attach a wired earphone through a 3.5mm female jack, or connect its output to the input of a good amplifier device to drive a large speaker.
 
Compatible with PAM8403 module. 
 
Feature & Specification :
Bluetooth 3.0 with audio signal decoding feature.
The output is directly compatible with the amplifier.
Very little weight and small size form factor make it easily fits into any application area.
Can be used to Design your own wireless music system
Low power consumption.
3.7v-4V voltage supply.
 
Specification:
Weight:  0.003Kg
LxBxH:   22mx13mmx3mm