Description: This RF Bridge can convert most of the 315MHz/433MHz RF Remote Controllers into WiFi wireless. It can be used for most of the 315MHz/433MHz RF Remote controlled products, like RF controlled switch, RF controlled socket, RF controlled bulb, RF controlled (garage) door opener, etc. Remote ON/OFF: Turn connected 315MHz/433MHz RF devices on/off remotely from anywhere on the App. Voice Control: Perfectly compatible with Amazon Alexa and for Google Home. Easy to achieve mobile APP control. One machine with multiple controls, cycle timing opening and closing, one machine with multiple users. Specification: Supported Radio: 315MHz/433MHz RF Platform: for Android, for iOS Material: ABS VO(Fireproof) Size: 110x105x35mm Package Includes: 1x 315MHz/433MHz RF Bridge 1x User Manual Note: Transition: 1cm=10mm=0.39inch Please allow slightly 0-1cm difference due to manual measurement. Colors can appear different depending on light and how the listing is viewed. Thanks for your understanding and attention. Wish you a pleasant shopping experience!