SPECIFICATIONS: Bluetooth Version: 5.3 Chip Set: ATS2835P Profiles: HFP / A2DP / AVRCP Operating Distance: 15 m Frequency Response: 80Hz - 20kHz Battery Capacity: 5400mAh / Charge Time: 3.5 Hours by fast charging 9V6 hours by 5V/2A adaptor Playback Time: Up to 8 Hours Power Requirement: 5 V DC , 2 A Sensitivity: 82dB Impendence: 4 Ohm 60W RMS OutputFEATURES AND BENEFITS: Up to 8 Hour Playback IPX level: IPX6What's in the box1 x Volkano X VXS400 Portable Bluetooth Speaker - Black