Specification:
Bluetooth Version: V3.0+EDR
Compatibility: V2.0/V1.1/V1.0
Operating Range: 10 meters
Microphone: Yes
Loudspeaker output: 3W
Signal to Noise Ratio(SNR): 84db
Sensitivity: 80dB2dB
Music Format: MP3
Power Supply: Built-in Battery
Input: for DC 5V 500mA
Working voltage: 3.0-5.5V
Playing time: 3h
Charging time: 2h

Package include:
1 x Bluetooth Speake
1 x Micro USB Charging Cable