New Sonoff RF (433.92 MHz radio control) touch switches have similar feature as SmartWise T1R1 series RF switch, but come with the similar modern look as Sonoff TX T2 smart switches. It is typically used as wireless 2-way switch for Sonoff TX switches, or wireless switch for Sonoff and SmartWise RF relays, and need no wiring but work with 2 pcs 3V batteries.
Inside the wall switch case there is a 433MHz RF (radio) remote control. The device is not for standalone use, pair it wirelessly with Sonoff TX T1, T2, T3 series (1C, 2C, 3C) switches via radio frequency, Sonoff RF or Sonoff 4CH Pro smart relay, or an RF gateway such as Sonoff RF Bridge or SmartWise RF Bridge.
Fix it to the wall with screws or double sided adhesive. No need for wiring at all, it controls other T1/TX switches via radio frequency. No inside-the-wall part, no need for in-wall electric socket.
The remote controller works add the ability to control the lights from a distance, and does not require wiring, simply use a stick or screw and ready to use. The multiple gang version allows you to pair with different RF receivers, so one SONOFF remote controller supports controlling multiple lights. The remote controller can be used to connect with SONOFF T1/T2/T3 wall switch to achieve two-way control. It is also used for RFR2, RFR3, 4CHPROR3 and SlampherR2 which provides you one more control way except for APP remote control and voice control.
The backlight is designed on the touch button to give you a clear location to control the light at night. The absorbing energy from light decides the brightness of backlight, the more energy it absorbs, the higher its brightness. Three using methods can be chosen from stick-on, screw-on and desk-top.

Features:

This is the 1 gang product version.
RF frequency: 433MHz
Touch switch - glass front touch panel
Color: white glass touch, with white frame;
Power Supply: 2 pcs. of CR2032 battery (not included);
Remote Control Distance: >50m (in open space);
Dimensions meet EU standards: 86x86mm front panel, 9mm depth
Easy to fix - fix it to the wall with screwing (not included) or double sided adhesive (included)

Technical data sheet

Weight     0.13 kg
Dimensions     8.6 × 8.6 × 0.9 cm
Electric gangs controlled     1
Physical on/off button     touch button
2-way or 3-way switching     can be used as wireless RF switch for Sonoff/SmartWise switches
Device power supply     2 pcs CR2032 batteries
RF/ radio control (433.92MHz)     yes (RF transmitter)