Provided by the buyer.

Please note:There are three kind of speakers, one is BS-10, one is BS-28A, the other one is BS-28B, they have different parameters. Please view carefully before buying, if you have any doublt , please don't hesitate to contact to us, thank you.

Description of BS-10:
Speaker Feature:
Channel:2.0
1. Bluetooth version: V5.0
2. Speaker: 10W*4
3. Bluetooth distance: 10M
4. Battery capacity: 2000mA 3.7V
5. Nominal voltage: DC 5V
6. Music playing time: about 3 hours.
7. Standby time: 240 hours.
8. 1A Charging time: about 2 hours.
9. Audio Input: Bluetooth,RCA,3.5mm Aux, TF card,USB
10.Dimension: 550 x 50 x 50mm / 21.65 inch x 1.97 inch x 1.97 inch
11.Net Weight: 585g
12.FM Radio Frequency: 87.5-108
13.Accessories: charging cable, 3.5MM-RCA cable, remote control, manual
14.Support TV/PC/Phone/Tablet/Laptop/MP3/M P4/DVD player/TV Box Audio

Product parameters:

Remote control:YES

Bluetooth version: Jerry V5.0

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

Package Included:
1*Speaker
1*Charging cable
1*3.5mm RCA cable
1*Remote controller
1*User manual