Bluetooth Mini Speaker WS-883 With Micro SD & USB Support

Mini Portable Bluetooth Speaker, Good Bass Sound Wireless Speaker Box For Cell Phone 

1,Best promotional gift speaker;
2,Play USB/TF card in the mp3 audio file;
3,External Power charging interface
4,Speaker with wireless autodyne system
5,Handsfree portable speaker with Built-in Mic;

Specifications:
Wireless version:V3.0 + EDR
Wireless transmission power: CLASS2 4dBm
Frequency Response: 150Hz-18000Hz
Charging voltage: DC5V
Working voltage :DC 3.7V
Buit-in Rechargeable Lithium Battery
Battery capacity: 600mAh
Music playing time:3-4H
Signal to Noise Ratio:≥85 db
Wireless range :10m
Support : Wireless , FM radio ,TF card, handsfree phone call, Mobile Phone and PC use; 

Please Note : Random colour will be chosen depending on stock availability