Product Features:

1. Adopt Bluetooth V4.2 version

2. Use 4 full-frequency speakers

3. USB interface, U disk audio input function

4.TF card audio input function

5.3.5mm audio input

6.FM radio function

7. Use micro charging port

8. Can control the volume addition and subtraction

9. Can control songs up and down song

10. Can control song pause and play

Product parameters:

Bluetooth version: Jerry V4.2

Battery Type: 18650 polymer battery

Battery capacity: 2000mA

Use time: about 3.5 hours

Output power: 4 euro * 5W

Frequency response: 20Hz-20KHz

Transmission frequency range: 2.402G-2.480G

Signal to noise ratio: ±80db

Transmission distance: 8-10m

Charging type: microUSB 5V/1.5A

Size: BS28B: 550*50*50mm  , BS28A: 330x50