<p>The device should be installed with your local 4G SIM card. Then you can control the device On Off remotely by SMS, Call, PC web and App (WLTE Control).</p> <p>App and PC web communicate with the device via 4G data internet.</p> <p>SMS and call control is based on SMS Call network channel.</p> <p>Call control supports 99 authorized master numbers Max.</p> <p>With the 4G LTE network, you can install the device anywhere with 4G network coverage, perfectly solved the weakness of WIFI network distance limitation.</p> <p>Web control ( in 4G data internet mode): control equipment via a web browser of PC.</p> <p>User can use the web browser to send On\/Off to controller, but can't modify setting and push notification. Please do related settings on App.</p> <p>App control via 4G data internet:</p> <p>The App ( WLTE control ) has multi-functions: control relay on\/off, timing control, centralized management control, sharing devices, time correction etc.,</p> <p>Set:</p> <p>A version: No power off alarm function.</p> <p>Plug Type:EU Plug,it applies to Indonesia, Germany, France, , Italy and so on</p> <p>Voltage: AC220V</p> <p>Material: Metal+Plastic</p> <p>colour: As shown</p> <p>Package Contents:</p> <p>1 x Smart Relay Switch (no power off alert)</p> <p>Only the above package content, other products are not included.</p> <p>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 +\/- 1-3cm.</p>