Sony WAHT-SA1, S-AIR, 24-Bit. Total Harmonic Distortion (THD): 10%, Maximum input level: 220V, RMS rated power: 286W. Headphone connectivity: 3.5 mm. Connectivity technology: Wireless. Input frequency: 50/60 Hz, Power consumption (typical): 50W. Depth: 34.5 cm, Height: 10 cm, Weight: 1.7 kg