Features:This product is a wireless switch supports inching /selflocking mode. Users can add the device to the APP Smart life in order to remotely control connected home appliances or devices.In selflocking mode, customers can remotely turn on/off connected devices immediately.When in inching mode, customers can have two wiring ways to select, and you can set the inching time in APP .4G control model, no need to program. No matter where you are, you only need to download a APP to connect the 4G and control the cloud.Note:1. This 4G switch does not include a 4G SIM card. You need to bring your own 4G SIM card.2. According to customer feedback, it supports most European SIM cards and SIM cards in Russia. It is not 100% certain whether SIM cards in other regions can be used.Parameters:Input voltage:DC 7V~32V/USB5VMax.current:10AWireless:4GLTEWorking temperature:20~70CWorking Humidity:80%Color: WhiteMaterial: ABSThere are differences in printing and silkscreen printing due to different batches, which will not affect the use; there are color differences in the actual product due to different light or display.Package Contents:1 x Smart SwitchOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/ 13cm.