HAVIT SK570BT MULTI-FUNCTION PORTABLE BLUETOOTH SPEAKER

Bluetooth Version: 3.0+EDR 
Wireless Operation Range: 10M
Impedance: 4Ω
Speaker Driver: 3w*2
Speaker Size: 40mm
Play Time: 4-8Hours 
Talk Time: 4-8Hours
Li-ion Battery: 1200mAh/3.7V 
Charge Time: 2-3Hours
Charging Voltage: 5V/0.5A 
Weight: 337g 
Product Size: 170*45*60mm 
Support Hands Free/Aux in/TF-Card/FM/USB-Disk