Volkano Heavy Series 6.5" Bluetooth Trolley Speaker with wired ABS mic Don't compromise on sound for portability. Get the best of both worlds with this compact, yet powerful trolley speaker. Bluetooth Version: 2.1+EDR Battery: 12V, 3AH Product Size: W310 H418 D203MM Charge Input: AC: 100-240V / 50Hz or DC: 12V Playback time: 3 Hours Tweeter: 1" *1, 10W Subwoofer: 15'' *1, 20W Frequency: 40Hz - 20kHz Sensitivity: 90dB What's in the box 1 x Volkano Heavy Series 6.5" Trolley Speaker