Power: 5 Watts RMS Signal / noise ratio: 80 dB Impedance: 2 Ohms Battery: 600 mA Voltage: 5 V Weight: 600 gr Charging time: 2 - 4 hrs Autonomy: 3 - 4 hrs Supports 16gb memories (max.) Inputs: USB, Micro SD, Modes: Bluetooth, Line In, FM