Features: Very convenient to use, simple wiring diagram connection way. It can connect to the electronic control lock, light, electric curtain, etc. So that it can remote unlock the door, close the light, open or close the curtain, etc. Super small body, and it occupies less space. The working mode can be changed by yourself: you can switch to momentary, toggle, latching three modes as you need. Learning pair code: it can work with any remote control with the same frequency, so you needn'for t worry about losing remote control any more. Specifications: Material:ABS Size: As Picture Shown Receive sensitivity: -105dbm 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. Thanks for your understandings. Package includes: 1x Receiver Board 1x Remote Control