VolkanoX VXS400 Series True Wireless Stereo BT Speaker with LED Effects

Bluetooth Version: 5.3
Operating Distance: 15 m
Frequency Response: 80Hz - 20kHz
Battery Capacity: 5400mAh
Charge Time: 3.5 Hours by fast charging 9V, 6 hours by 5V/2A adaptor
Playback Time: Up to 8 Hours
Power Requirement: 5 V DC , 2 A
Sensitivity: 82dB
60W RMS Output