【Upgraded Receiver】The receiver is designed with a hidden antenna and plug-in wiring, which reduces the risk of exposed wires and avoids the risk of electric shock. It is more compact and perfectly compatible with different sizes of junction boxes. Switch size: 86x86x11 mm, Receiver size: 51x27x22 mm. 【Easy Installation】No complex installation is required: no wiring or drilling. Simply install the receiver between the device to be controlled and the power supply. You can easily expand your lighting system without altering your current installation. Portable wireless design, convenient for the elderly, pregnant women, and people with limited mobility. 【Programmable and stable signal】Up to 8 switches can be paired with a single wireless receiver. The strong signal penetrates walls without interference between switches. Perfect for flexible use, such as a two-way switch for stairs, basements, garages, attics, hallways, gardens, swimming pools, and other outdoor lighting. 【Long Range】100m