Description:（BS-28A）

1. Adopt Bluetooth V5.0 versio

2. Use 2 full-frequency speakers

3. USB interface

4.TF card audio input function

5. 3.5mm audio input

6.FM radio function

（BS-28B）

1. Adopt Bluetooth V5.0 versio

2. Use 4 full-frequency speakers

3.TF card audio input function

4. 3.5mm audio input

5.FM radio function

6.RCA input function

7. Can control the volume addition and subtraction

Specifications:

（BS-28A）

1. Bluetooth version: V5.0

2. Speaker: 5W*2

3. Bluetooth distance: 8-10M

4. Battery capacity: 2000mA 3.7V

5. Nominal voltage: DC 5V/IA-2A

6. Music playing time: about 4 hours.

7. Standby time: 240 hours.

8. 1A Charging time: about 2-3hours.

9. Audio Input: Bluetooth,3.5mm Aux, TF card,U_Disk

10.Dimension: 330 x 50 x 50mm

11.Net Weight: About 500g

12.3.5mm cable / charging

cable / manual

13.Support TV/PC/Phone/Tablet/Laptop/TV Box Audio

（BS-28B）

1. Bluetooth version: V5.0

2. Speaker: 5W*4

3. Bluetooth distance: 8-10M

4. Battery capacity: 2000mA 3.7V

5. Nominal voltage: DC 5V/IA-2A

6. Music playing time: about 4 hours.

7. Standby time: 240 hours.

8. 1A Charging time: about 2-3hours.

9. Audio Input: Bluetooth,3.5mm Aux, TF card,RCA

10.Dimension: 550 x 50 x 50mm

11.Net Weight: About 670g

12.With remote control / RCA cable / charging

cable / manual

13.Support TV/PC/Phone/Tablet/Laptop/TV Box Audio

Provided by the buyer.