Speaker System: 2.0 USB audio and power, Bluetooth 5.3, 3.5 mm AUX-in, 4-pole headset port, 3-pole microphone port Total System Power: Up to 10W RMS Peak Power: Up to 20W 2 x 2.25' Full-range Drivers with Passive Radiator Operating Range Up to 10m / 33 ft Built-in and fully automated (no manual switching required)