Product Features:

1. Adopt Bluetooth V4.0 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 V4.0
Battery Type: 18650 polymer battery
Battery capacity: 2000mA
Use time: about 3.5 hours
Output power: 4 euro * 10W
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: 330x50mm

Parameters:

- Bluetooth version: 4.2

- Frequency response: 20Hz - 20KHz

- Transmission power: 1.49mW

- Transmission frequency: 2.48GHz

- Bluetooth distance: 8 - 10m

- Charging time: 2 - 3 hours

- Playing time: 4-6 hours

- Standby time: 240 hours

- Bluetooth profiles supported: A2DP, AVRCP, HSP and HF

- Battery: 3.7V/2000mAh (included)

- SNR: 80dB

- Output power: 10W x 4

- Charging plug: Micro USB

- Charging voltage: DC 5V/1A - 2A

Package weight:0.877 kg

Product Size(L x W x H):55.00 x 5.00 x 5.00 cm / 21.65 x 1.97 x 1.97 inches

Package Size(L x W x H):58.00 x 8.50 x 8.50 cm / 22.83 x 3.35 x 3.35 inches

Package Contents:1 x Speaker, 1 x USB Cable, 1 x User Manual in English