Bluetooth Version: V4.1+EDR

Bluetooth Range: 10 meters

Power: Build in 280mAh li-battery

Charging Voltage: DC5V, 500mA

Charging Time: About 2.5 Hours

Playing Time: About 2.5 Hours

Standby Time: About 72 Hours

Speaker Out: 3 Watt

Frequency Response: 2.4 to 2.4835 GHz

Build in Mic

Support Phone Bluetooth hands-free function

Operating Temperature: -10 to 40 Degree Celsius

Button: Function button

Technical parameters:
Rated impedance:4.0hm
Rated power:3W
Rated voltage: DC5V
Frequency response:3dB
RMS:1.2W
Frequency scope: 170-15KHz
Power supply: DC 5V Built-in Li-ion battery
Speake:2 inches

Note:
Colors may are a little different from the picture. It is normal due to the resolution difference of your computer.