Panasonic AV Control Receiver. Total Harmonic Distortion (THD): 0.3 %, Impedance: 6 Ом, Sensitivity: 97 dB. Headphone connectivity: 3.5 mm. Connectivity technology: Wired. Supported radio bands: AM/FM, AM band range: 522 - 1629 kHz, FM band range: 87.50 - 108.00 MHz. Weight: 5 kg