Features: It is a learning code wireless remote control switch, the output way /working way can be changed as you like, it is easy to match the transmitter. The volume is small and the performance is stable and reliable, high receive sensitivity. It covers application ranging from simple domestic remote control to autonomous control, like auto door, window, lifting equipment, entrance access, up and down controller, alarm system industrial control and security etc. The remote control is designed to control a wide variety of electronic devices with a wireless signal. Extremely easy to set up and use. Package Includes: 1x Remote Control Specifications: Material:ABS Szie:Approx. 6.3x3.8 for cm/2.48x1.45 inches Working voltage: DC3V Working current: 10 mA Operating frequency: 433MHz Transmit power: 10 mW Remote control distance: 100M Modulation method: ASK Chip type: super heterodyne RF chip + encoding chip two in one, standard EV1527 encoding Working environment: -15/+75 degrees Celsius Oscillation resistance: 270-330K note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.