your working demands.3 Working Modes: It is designed with self-locking mode, interlocking mode and inching mode. Support set the inching time in APP, and it has the timing-share function.Timing Function: Equipped with single timing, repeat the timing, delay timing, cyclic timing function. You can set a time each month,/week/day that the device will automatically turn on or off at a predetermined time.APP Remotely Control: After correctly connecting to the Tuya APP, you can check real-time current working status of your smartdevice via mobilephone APP, and remotely control the on/off of your home intelligent switches devices wherever you are.Family Sharing Function: You can share the control of device with relatives and friends, and the family can cancel the authorization to enjoy convenience and happiness together.Hands-free Voice Control: Compatible with voice speakers for easy voice control, you can achieve voice control and enjoy the convenience of technology.Wide Applications: With this switch module, you can make your traditional switch into intelligent switch module. It can be used in your home, office, hotel and so on.3 Types Available: You can choose 1-channel type, 2-channel type, and 4-channel type depending on your working demands.Specifications:Name: Breaker On-Off ControllerMaterial: plasticsType: 1-channel type, 2-channel type, and 4-channel type (optional)Item size:1-channel: 42* 28* 89mm/ 1.65* 1.10* 3.50in2-channel: 38* 28* 126mm/ 1.50* 1.10* 4.96in4-channel: 82* 75* 28mm/ 3.23* 2.95* 1.10inPackage size: 130* 110* 50mm/ 5.12* 4.33* 1.97inPackage weight:1-channel: 52g/ 1.83ounce2-channel: 70g/ 2.47ounce4-channel: 85g/ 3.00ouncePacking List:1* Breaker On-Off Controller