SONOFF 4pcs/lot 10A DIY Smart WiFi General Modification Remote Control Power Shut with Smart APP WiFi Power Shut is a very creative product, when you forget to shut water heater, TV, lights, AC,  this one will help you a lot. Remote turn on/off power, anywhere at anytime, leading a smart life from now on. Features: Compact Design:Exquisite workmanship, small in size, portable, never takes much room. DIY:Enjoy DIY fun, help you to create customized smart home. Intelligent Linkage:Connect smartphone and socket with SONOFF through smart APP.  Remote Control:Remote real-time monitoring, control home electrical appliance anytime anywhere. Timing Schedules:Smartphone APP control, set time as you like. Power Saving, Safe:Energy saving and overall safe circuit conservation. Compatibility: APP for IOS Android. How e: 1, Scan QR code of user guide on the case. 2, iOS, Android user download your seperate APP. 3, Add and connect device according to the user guide and FAQ. Specifications Color: White WiFi: IEEE 802.11 b/g/n Input: AC 90V-250V Maximum Power: 2200W Maximum Load: 10A Product size: Approx. 9 * 4 * 2.5cm / 3.5 * 1.56 * 0.98in Product weight: Approx. 45g / 1.57oz Package size: Approx. 9 * 4 * 3cm / 3.5 * 1.56 * 1.17in Package weight: Approx. 50g / 1.75oz Package List: 4* SONOFF Smart WiFi Remote(with Spare Screws)