This Button is powered by CR2032 . After connecting with and adding into App , it allows you to quickly "set the scene" for a particular room or living scene, like Reading, Movie, and so on. Button is a and energy-saving item alternative to the traditional hard-wired switch, with push button design it can be stick on the wall or put it on everywhere you like.

Features:
A is required for using this knob scene switch.
Customize button actions. Trigger routines to occur, like press / double press.
Compatible with APP, control , electronics, and small appliances anywhere, create scene linkage, DIY home automation.
CR2032 cell powered, ultra-low consumption, strong endurance.
and lightweight, no tool required, easy self-adhesive installation.

Specifications:
: CR2032 3V (the is not included in the package)
Communication:
Control Distance: 25m open area
Operating : 0℃-55℃
Working Humidity: < 90%RH
of : 1 years (General use)
Material: ABS
Item Size: 50 * 50 mm / 1.97 * 1.97 inch
Package Size: 7.5 * 7.3 * 1.7 / 2.95 * 2.87 * 0.67 inch
Package Weight: 25g / 0.88oz

Package List: E24769
1 * Knob Scene Switch
1 * User Manual (English)