A great little project for learning a bit more about electronics. The supplied parts are easy to assemble and gives you a practical item at the end. Once built you can conncet to your phone over Bluetooth and play your favorite tunes. 
 
This updated model features an USB power connector to save using AA batteries and cute laser engraved cat face design. 
 
Self assembly required.
Ideal project for any budding electrical engineer, build your own Bluetooth speaker from this kit. 
Ideal starter project with a practical result.
Requires 4x AA Batteries or USB Power. 
Batteries not included.
Once built simply turn on and pair to your mobile phone.
The speaker has a simple on/off switch, your phone can control the Bluetooth volume control when connected. 
Will work with pretty much any Apple or Android phone/tablet.