Wide signal transmission range: The effective area between transmitter and receiver is about 0~40m indoor and about 400m outdoor - Wireless switch: weight: 35g - Size: 7.5 x 4.8 x 1.5 cm - Easy to carryLong life: switch button, service life up to 600 thousand times, 400 thousand times for the receiver, button CR2032 lithium battery can work for 6 ~ 8 years, working temperature: -40 ~ 70.Easy Installation: No Wiring to Switch, Uses Tape Installed, No Need to Tear Up Walls, Works with Receiver (Note: Receiver is wired between lamp and power supply. )One switch can control an unlimited number of receivers at your fingertips. A receiver can react to 8 switching fields.Wireless switch compatible with all lights, halogens, incandescent lamps, fluorescent tubes, LED lighting, fans and other electrical switching devices, etc. Integrated power: 1000 W. CE, FCC, CQC, ROHS certified product