Overview: The sticky 433MHz 86 type wall panel wireless RF Remote control transmitter can support all SONOFF products with 433Mhz RF function, except for Sonoff T1 US. After successfully learning codes with 433MHz RF Remote, the push button wall switch can be turned on/off indoors. It can make your life smarter and more convenient! Features: *It can replace remote controller to control all SONOFF products with 433Mhz RF remote control function, such as T1 UK, T1 EU, Slampher, Sonoff RF, Sonoff 4CH Pro. *Mechanical Life 100,000 times of operation. Excellent quality with long lifespan. Upgrade your home to an elegant smart home, control anywhere, anytime! *You can stick or screw it to your 86 box on the wall or near staircase, bedside or doorway. *Attached with alkaline battery inside, provide with stable and powerful power supply. *With dual adhesive tape, can be installed anywhere you like. Easy installation and use. Specifications: Channel: 3 CH Encode: EV1527 Frequency: 433.92 Remote Control Distance:0-100m Use Application: Staircase / Bedside / Doorway, etc. Power Supply: 1*12V 27A battery ( included) Current: 20~25mA Product Size: Approx. 86* 86 * 13 (mm) Product Weight: Approx. 50g Package Information: Package Size: Approx. 10 * 10 * 4cm / 4 * 4 * 1.6in Package Weight: Approx. 56g / 2oz Packing List: 1 * 433Mhz RF Remote Controller( with batteries) 2 * Dual Adhesive Tape