This breaker controller is designed with self-locking mode, interlocking mode and inching mode. Support set the inching time in APP, and it has single timing, repeat the timing, delay timing, cyclic timing, and the timing-share function. Tuya APP remotes control, you can check real-time feedback current working status of your smartdevice via mobilephone APP, and remotely control the on/off of your home intelligent switches devices wherever you are.Compatible with Alexa voice speakers for easy voice control. You can choose 1-channel type, 2-channel type, and 4-channel type depending on your working demands. Features: Reliable Quality: This product is compact size design for quick and easy installation, and will not occupy to much space. 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 feedback 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 Alexa 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 Controller Material: plastics Type: 1-channel type, 2-channel type, and 4-channel type (optional) Item size: 1-channel: 42 * 28 * 89mm / 1.65 * 1.10 * 3.50in 2-channel: 38 * 28 * 126mm / 1.50 * 1.10 * 4.96in 4-channel: 82 * 75 * 28mm / 3.23 * 2.95 * 1.10in Package size: 130 * 110 * 50mm / 5.12 * 4.33 * 1.97in Package weight: 1-channel: 52g / 1.83ounce 2-channel: 70g / 2.47ounce 4-channel: 85g / 3.00ounce Packing List: 1 * Breaker On-Off Controller