1) Compact size.

2) Enable your speaker with Bluetooth function.

3) Plug and play no need installation.

4) Works with the speaker which has 3.5mm line-in jack and play music from Bluetooth A2DP enabled mobile phone and other Bluetooth A2DP audio devices.

Specification:

1) Bluetooth V2.1+EDR

2) Bluetooth profiles: A2DP AVRCP

3) Range: 10 meters

4) Rechargeable 80mAh Li-polymer battery

5) Frequency response: 2.4GHz-2.4835GHz

6) Receiving sensitivity: -74±4dB

7) Charging input voltage: DC 5V

8) Up to 12 hours working time

9) About 2.0 hours charging time