Feature :
Wireless Bluetooth Speaker Support Answer Calling and TF Card
Support TF card(micro SD TF card)with TF card slot，can play MP3 format files in the TF card
Support Mobile Phone/Laptop/Tablet PC
Expanded Bass Xpansion system drives a fuller richer low-end response
Larger 45mm driver delivers precise highs for superb sound
Built in rechargeable battery，charged by computer via USB interface.
Specifications:
Support A2DP， AvRCP， headset， hands free profile
Working range: up to 10m
Working time: 4 hours
Loudspeaker Output: 3W
Frequency response: 280Hz-16KHz
Signal to noise: 95dB
Distortion: 0.5%
Battery Charging Voltage: 5V
Battery Charger Time: 2 hour
