Features: 1、Convenient to use， saving energy and eco-friendly. It is applicable to remote control of electrical power supply 2、Two working modes， includes manual and remote control. Round button on interface is not only manual key but also learning keys of matching buttons on remote transmitters 3、Adjustable two working modes， self lock is to match button with the same button of remote control， press once for open and another try for close. Interlocking is to match buttons with two different learning key， press one button for open and another 4、Great for switching on/off hard to reach appliances and devices without built-in switches. It can also controlling appliances in inaccessible areas， or for people with limited mobility 5、Can be used for wide range of applications， such as electrical appliances， lamps etc Specification: Features:1. Convenient to use， saving energy and eco-friendly. It is applicable to remote control of electrical power supply.2. Two working modes， includes manual and remote control. Round button on interface is not only manual key but also learning keys of matching buttons on remote transmitters. 3. Adjustable two working modes， self lock is to match button with the same button of remote control， press once for open and another try for close. Interlocking is to match buttons with two different learning key， press one button for open and another button for close. 4. Great for switching on/off hard to reach appliances and devices without built-in switches. It can also controlling appliances in inaccessible areas， or for people with limited mobility. 5. Can be used for wide range of applications， such as electrical appliances， lamps etc. Specification:Condition:100% Brand NewMaterial: plasticColor: As Pictures ShownSize: approx.5.6*11*6.5cm/2.2*4.3*2.6inWeight: Approx.147g/5.2oz Package list: 1 * Remote control1 * Socket Note:1. Please allow 0~1 inch 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.