Wireless Remote Control Mains Switch Power Point 1 Outlets DT173 Master socket: Voltage: AC220V \/ 50HZ Current: 8A Power: 2200W-3500W Ambient temperature: -40 C ~ + 40 C Size: 137*72*40mm Remote control: Operating voltage: 12V DC Battery Type: 12V \/ 23A(Included) Operating Current: 13mA Transmitting power: 0.1 W (power consumption was zero when not working) Remote distance: 50M-300M (without obstacles) Remote Size: 14*35*82mm Package included: 1 x Master socket 1 x Remote control 1 x 12V \/ 23A Battery