ESB8258B 1800mAh 15W Portable LED Bluetooth Speaekr With String

Support Bluetooth 5.3+EDR audio sources,TF card support,USB flash support,AUX,Volume control,charge indication,status indication,TWS button,

Multi-point interconnection.

Battery capacity: 7.4V 1800mAh

Power Supply:DC 5 Volt 

Output Power:15W

Driver Unit: 3 inches,3ohms 15W 

Frequency Response:60Hz-18KHz

Charging Time:About 3 hours

Playing Time:About 4-5 hours