1.Extremely design with high quality:Sensitive button design for excellent on/off feelings for on/off your boiler; Exquisite craft with lovely drop-shaped ensures better user experience;Built-in Tuya chip is featured as for smart controls in Smart Life App. Install the US type with horizontal and vertical position are both feasible for great visible experience. 2.ON/OFF Relay Status Adjustable:Set your restart status for your boiler switch with ON/OFF/Keep as last status optional as smart automation when power off;Even device share to your family members to smartly control together for added convenience. 3.Wireless Remote Control:You can use "Smart Life/Tuya Smart" APP in your smart phone to control the boiler switch wirelessly with 2.4G Wi-Fi or 4G network with no hub required anywhere from anytime.No more worry about forgetting turning off your boiler. 4.Timer and Countdown Supported:Timer your own schedule for your boiler in App to automate the shower system of your house as well