The BOB Storm Source and Charger are designed for Bob Boxes, providing high-quality sound experiences. Key Features: Eliminates the need for a battery. Supports up to 1700 WRMS of continuous sound. Functions as a battery charger. Smart Cooler function minimizes noise at lower volumes. Technical Specifications: Maintains up to 1700W RMS of sound playing without Battery Assistance Automatic Bivolt: 110/220Vac Bivolt Electrical Network Input: 90 to 140Vac / 170 to 240Vac Selectable Output Voltage: 12V / 13V / 14V / 15V Output Current: 90 Amperes Dynamic Battery Level and Charge LED Indicators Protections: Overload, Short Circuit, and Temperature Smart Cooler - Intelligent Ventilation System Control: Dynamic by PWM Topology: Half Bridge Weight: 1.400 kg Approximate Dimensions (WxHxD): 25.9x15.1x5.8 cm Package Contents: 01 JFA 90A BOB Storm Automotive Power Supply and Charger. Instruction Manual