"Overview: The 433MHz RF wireless remote control transmitter with 2CH T433 86 type self-adhesive wall panel can support all SONOFF products with 433MHz RF function. After learning the codes with the 433 MHz RF remote, you can turn on/off the touch switch inside. It can make your life smarter and more convenient! Features: * 2CH can control 2 different devices. Support all SONOFF products with 433MHz RF remote control function, such as T1 UK, T1 US, T1 EU, Slampher, Sonoff RF, Sonoff 4CH Pro. *You can paste it or screw it onto your original box 86 on the wall or near a staircase, bed or door. * With luxury glass panel sensitive touch screen, can touch ON / OFF. Upgrade your house to make it a stylish and stylish home, control it anywhere, anytime! *Attached with the alkaline battery inside, provides stable and powerful power supply. /> * With double adhesive tape, can be installed anywhere you want. Easy to install and use. Features: Power supply: 1 x 12V 27A alkaline battery (included) Use: staircase/bedside/door, etc. Product size: approx. 86 * 86 * 14 (mm) Product weight: approx. 103g Package Information: Package Size: Approx. 9.3 * 9.3 * 1.7cm / 3.7 * 3.7 * 0.7in Package Weight: Approx. 114g / 4oz Packing list: 1 * 2CH 433Mhz RF remote control (with batteries) 2 * Double Adhesive Tape