The revolution continues! Another revolutionary product we launched today: The BOB Storm Source and Charger, a product designed for Bob Boxes, which will offer the best experiences to sound lovers. What are its differentials: Eliminates the need for a battery; Maintains up to 3800 WRMS of sound playback; Can be used as a battery charger; Provides Smart Coller function, which prevents noise when you listen to the sound at a lower volume. Technical Specification: Maintains up to 3800W RMS of sound playback without battery assistance Automatic Bivolt: 110/220Vac Bivolt Mains Input: 90 to 140 Vac / 170 to 240 Vac Selectable Output Voltage: 12V/13V/14V/15 V Output current: 2000 amp LEDs Battery level indicators and full charge protections: overload, short output and intelligent temperature cooler - Intelligent ventilation system control: dynamic by PWM topology: half bridge weight: 5.8 lbs Approximate measurements (LxHxD): 12.5x6.8x3.7 in Package Contents: 01 JFA 200a BOB Storm Automotive Power Supply Instruction Manual