1) Metal sense design

2) Portable, Appearance design: Taihe metal and ABS plastic

3) Bluetooth wireless audio transmission

4) With phone Handsfree

5) Audio input link

6) Support TF Card

Parameter:

1) Version: v3.0

2) Frequency: 60HZ-18KHZ

3) Max power output: 4W

4) Signal-to-noise ratio: ≥ 95dB

5) Distortion: ≤ 0.5%

6) Distance: 10 meters

7) Date transmission: Up to 3Mbps(over the air)

8) Inserted up time 5-7 hours

9) Charging Voltage: 3.7V

10) Working Voltage: 4.8-5.5v DC

11) Workding Cureent: 200MA

12) Staticstate Cureent: > 1uA

13) Battery Capcity: Built-in high capacity battery , 600mAH