Type: ISDB-T One Segment STB(Set Top Box) Reception Channel: 13CH-62CH TV System: ISDB-T (One Segment) Sensitivity:<-90dBm Video Output : NTSC 1Vp-p(75 OHM) Video Input :1Vp-p(75 OHM) Audio Output: 850mVrms(600 OHM) Connection Terminals: Antenna socket: 75 OHM External power socket (DC 12V/500mA) Audio/Video input socket Audio/Video output socket IR input socket Power Supply: 2 ways power supply system AC/DC Adaptor Car batteries - car adaptor Power consumption: 1.5W(MAX) Main Unit Dimension: ISDB500:92mm (L) x 72mm(W) x31.5mm (H) ISDB501: 90mm (L) x 74mm(W) x25.5mm (H) Main Unit Weight: Approx. 100g