The Gateway device provides a central hub in a domestic or small commercial environment for a range of smart home related products. These include plug adapters for remote control, power monitoring, wall sockets & lights switches, radiator valves for heating control & whole house monitor. The Gateway is able to store timers locally & therefore if there is a connectivity issue the Gateway will still control the Mi Home system. This is a very important safety feature Specifications Input voltage: 5VDC Input current: 150m A max Power connection: Micro USB Ethernet connection: RJ45 Standby power: 0.3W Transmission Frequency: 434.300 MHz