Bluetooth Stereo Aduio Receiver. This circuit board will convert you speaker to wireless one. Just connect the speakers to this circuit and provide 5v power. Then you can connect the circuit from your mobile phone via bluetooth and play songs etc.
Now you can give power from you mobioe charger directly or any other 5v power supply.
You can connect 3 watts speaker to this module. Support both left and right speakers.
Bluetooth Audio Stereo Receiver
Connection type- Wireless, Bluetooth
Speaker - left, right 3 watts
Operating voltage- 5V
Dimension - 14x23 mm