Specification:
1.  Bluetooth Version: V2.0, Chipset: CSR
2.  Transmission distance: 10M
3.  PC port support: USB2.0
4.  Support music format: MP3/WMA
5.  Support TF card: 128MB-32GB
6.  FM radio frequency:87.5-108MHZ
7.  Build-in speaker mic
8.  Speaker: Ф40mm.
9.  Impedence: 32Ω
10.Frequency Response: 20Hz-20KHZ
11.Rated Power: 50mW
12.Max Power: 100mW
13.Plug type: Ф3.5mm stereo
14.Work time: 4-5 hours