40W Super Bass, Clear Sound, HIFI Sound. Metal Case, TWS function

Bluetooth: ATS2819/V5.0 

Function: Music,AUX,TWS

Material: Metal case

Distance: 10meter

Speaker: 40W Bass diaphragm

Frequency Response:50Hz~20KHz

SNR Ratio: ≧90dB

THD+N:≦5%                

Battery: 4000MAH 

Working time: 12H; 

Charging：DC 5V 1000mAh 6H

Product size: 261*135*48MM

Net Weight: 800g