TYPE. Portable CONNECTIVITY. Bluetooth BATTERY RANGE. 10 a.m POWER SUPPLY VOLTAGE. 3.7V SCOPE. 10 m RMS POWER (W) 20 W SUPPLY. Accumulator BATTERY Li-Ion 3.7V, 4800 mAh DIMENSIONS (MM) 175 x 68 x 70 mm WEIGHT 540g COLOR. Grey