Metal  Stereo  Music Mini Bluetooth Speaker support TF MP3 Player Handfree

Bluetooth Version:3.0.

With/Without TF card slot for your choice

Frenquency:2.402-2.480GHz.
MAX Power output :3W 
MIC Sensitivity:-32db .
Receive Sensitivity:Better than +82dBm.
Range:10meters .
Data Transmission:Up to 3Mbps
UART Data Transmission Rate:115200bps .
Charing Voltage :4.8V –5.2V DC.
Working Voltage:3.7V –4.2V DC.
Working Current:200MA.
Quiescent Current:>1UA.
Battery :450MAH.
Antenna:Built in

 Hands-free phone features: support for hands-free public telephone functions, built-in microphone, giving you a clear call.

We are a family own factory.  We have a factory and sales office in Shenzhen China, and sales office and warehouse in California USA as well.

We have been in the electronic and promotional gifts industry for more than one decade.