Bluetooth speaker, play music wirelessly. 
3.5mm audio input. 
Handsfree function for calls. 
Great tone quality. 
Accord with bluetooth V3.0 
Transmission range: <10M 
USB charging voltage: DC 5V. 
Output power: 3W. 
Built-in power: Li-ion battery: 450MAH 
Material: aluminium shell. 
Size: 57*57*60mm