Does the 433MHz wireless stick-on smart switch is the extended new collection of SONOFF best-selling TX series Wifi Wall Smart Switch? None. It remains the comparable look with TX series to your home style modern and artistic, and is actually a 433MHz remote control. Does your house have hard-to-reach light switches? Or is the light switch at the end of a dark corridor conveniently reached for operation of controls at night? If that's true, you're competing a removable remote for your lighting. The 1/2/3-mode remote control works like other regular light switches but add the possibility to control the connection lights from a distance, and no need to use wire, just stick on it. The multiple modes you can realize two remote control solutions, a SONOFF remote control for control multiple lights controlled and several SONOFF remote controllers for a light controlled. Plus, the remote control can be used to connect to SONOFF T1/T2/T3 wall switch to two controls. It is also used for RFR2, RFR3, 4CHPROR3 and SlampherR2 which provides you with a more control mode than for APP remote control and voice control. The background lighting is designed on the touch button to give you a clear location around the lights at night. The absorbent energy from light determines the brightness of backlight, the more energy absorbs, the higher the brightness. Three use methods can be chosen from stick-on, screw-on and desk top. Give you a more option on the light control. As a 433MHz RF switch, it can match the SONOFF TX wall switches that can light you from two different positions without needing wiring. Check more lights from one position. Just like a universal remote control, the RF switch with multiple channels you can light one or more lights, which each channel can be used for a light. If the 433MHz RF protocol is compatible with patial SONOFF smart devices, the RF switch can be used to remotely control them as a common remote control. Model: T2EU1C-RF; T2EU2C-RF; T2EU3C-RF; Gang: 1 Gang, 2 Gang, 3 Gang; RF: 433MHZ; Colour: White; Feeding: 6v(3v button * 2); Distance distance: >50m(open space); 1*T2EU-RF 86 Type Sticky switch 433Mhz