Product specifications:

50. Wireless: V5.1

Support: L2CAP/A2DP/AVCTP, can receive AUDIO signal and control the AUDIO device.

Support HSP/HFP(Handsfree profile), with HANDS-FREE functions.

50. Working distance:10M
50. SNR:≥90db
50. Battery: 3.7V  1200mAh
50. Normal volume playing time:about 3H
50. Speaker driver: ¢52mm*1
50. Power: 4Ω/5W *1
50. Frequency response:120Hz-20KHz
50. Unit size: 122*121*34.7mm
50. Unit weight: about 324g
50. Charging:5V/500mA
50. Charging time: about 3 H

Product  Feature:

1. International advanced wireless chip and circuit design techniques, support  wireless devices.
2. With FM function, can search radio station broadcast automatically
3. With Hi-Fi speaker, to make sure the clear and bright sound.
4. Support  USB card, play MP3 format audio.
5. The wireless working distance is 10 meters.
6. Support TWS.
7. Volume adjustment can be by Knob and button .
8. It will close automatically after 30 mins .