Certainly the best value for money you've never seen. The quality of this 3W audio amplifier is just incredible.Just plug in a 5V power supply and an audio source. You'll also obviously need to connect two speakers.
power supply 5V 2A 10Watts barrel jack 5.5X2.1mm
100V - 240V AC to DC Power Adapter supply
* Input: 100V~240V , 50~60Hz
* Output: DC 5V 2A / 2000mA 24W
* DC plug size Outer Diameter: 5.5mm . Inner Diameter: 2.1-2.5mm
* Plug Specifications: EU Plug
* The adapters Connector: inside positive (+) . outside negative (-)