Modulation method: ASK Transmission frequency: 433,92 MHz Encoding method: Learning code EV 1527 Product size (per piece): 11.8 * 4.5cm Remote control battery: Cr2032 battery (including battery) Transmission distance: 30-50m (in open areas) Working voltage: DC 12V/27 Features: DIY: The combination of remote control and wireless switch makes it more convenient and reasonable, with simple pairing and easy operation. It can turn various devices in the home into wireless remote control devices 2.5D high-definition tempered glass: In order to have a better feel, we have adopted higher cost curved tempered glass, which is more high-end. Fluorescent Function: The button will emit a faint light at night, indicating the position of each button. The faint light will not disturb the rest of family members Two fixation methods: It can be placed on the desktop freely or fixed to the wall with the built-in screws. Suitable for various application scenarios Long battery life: According to theoretical calculations, the CR2032 battery can be used for about 3 months (depending on the frequency of use) Control distance: 30~100M long distance (in open areas) Angle Adjustment: The bracket can be adjusted from 0 to 100 °, suitable for your optimal forehead angle 433MHz: Learning code (1527), with a transmission distance of 30-50m (in open spaces), brings you a new remote control experience and more convenience to your daily life. RF Pairing: Supports remote wireless control of your garage doors, electronic doors, appliances, and other remote control devices. (Only products with the same RF frequency are supported) Compact and Convenient: With a lightweight and compact design, the password key is very convenient for you to carry when going out. Package Included: 1 set * (1 switch, 1 stand, 2 screws, 2 spiral tubes)