Feature: 1. EASY CONTROL: Learn multiple remote controls. Each button on each remote can be learned. One remote can control multiple switches, or multiple remotes can control one switch. Simple operation, flexible combination. 2. BRASS COIL FOR RELIABILITY: Made of authentic brass wire, the brass coil ensures stronger conductivity and longer lifespan, offering reliable quality and durability. 3. VERSATILE REMOTE SWITCH: Remote switch can be used to control various appliances and devices, offering convenience and flexibility in managing power supply remotely. 4. USER FRIENDLY DESIGN: Intuitive and user friendly design makes programming and operating the remote switch easy for users of all skill levels, enhancing usability. 5. WIDE APPLICATION: Remote relay switch mainly used in industrial control and security fields, as well as automotive electronics, such as cars, lights, motors, remote controls, wireless security alarms, wireless door access alarms, and wireless controllers. Specification: Item Type: Wireless Relay Switch Material: ABS, Brass Control Method: Remote or Manual Current: 500A Single Remote Battery: CR2016 x 1 (150mAh) (with Built in Battery for Shipment) Wide Application: Mainly used in industrial control and security fields, automotive electronics, such as cars, lights, motors, remote controls, wireless security alarms, wireless door access alarms, wireless controllers, etc. . Package List: 1 x Relay 2 x Remote Controllers 2 x Terminals 2 x Accessories 1 x User Manual