Power Sources: AC 100V-AC240V 50/60Hz; Power Consumption: Stand by 0.8W(±20%), Max 13 W (±20%); Monitor: 17.8cm(7″) Colour Digital LCD; Wiring: Camera: 4 wire(Polarity); Sub audio phone: 6 wire (Polarity); Extension monitor: 8 wire (Polarity); Handsfree typeen