Specification:
Compatible with: MP3,TF/Micro SD Card
Supports: Bluetooth,Hands-free Calls,Loudspeaker,Microphone,TF Card Music Playing
Functions: AUX Function,Songs Track
Interface: ,Microphone,Mini USB,TF Card Slot
Bluetooth:Bluetooth V2.1
Transmission Distance: W/O obstacles 10m
Power Output: 3W
Freq: 20Hz-20KHz
Battery Capacity: 400mAh
Charging Time:about 2 hours
Working Time:Medium volume 2-3 hours
Battery Type: Lithium-ion battery
Operating Voltage:DC3.7V-4.2V
Power:4Ω 3W
Package Include:
1 x Bluetooth Speaker
1 x USB Charging Cable 
