Features: 1The neutral and live wire design directly replaces the mechanical switch turning the traditional curtain motor into a smart curtain. 2Antilightning antisurge effective circuit protection low power consumption standby energy saving and safety. 3High sensitive touch glass panel save time and troubles crystal clear nonfading. 4No need for tedious manual switching curtains which is suitable for offices bedrooms and other places. 5WiFi remote control unlimited distance. One key to open/close the window wherever you are. Specification: Item Type: Curtain SwitchMaterial: PC+ABSColor: BlackProduct Size: Approx. 12x7.5x3.2cm / 4.7x3.0x1.3inWeight: Approx. 172g / 6.1ozRated Current: 10AWireless Standard: WiFi (2.4G 802.11 b/g/n)Control Distance: Unlimited (under 2G/3G/4G/WiFi network)Applicable System: for IOS 8.1/Android4.1 and aboveApp Language: Adaptive Chinese/English/Korean/German/French/Spanish/Italian/ArabicControl Method: Touch voice control mobile APP three-in-one multi-function control Package List: 1 x Switch2 x Screw1 x Instruction Manual Note: 1. Please allow 12in error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3. Automatically calculate the travel time required for the full opening and closing of curtains of different sizes and support precise voice commands or progress bar percentages to open or close the curtains. The user can open or close the curtains in percentage according to the scene.