Feature: 1. Energy Saving: When you lose power, the smart socket will stay off until turned on to save energy and ensure the safety of your devices. 2. Remote Control: Signals from our RF receivers and transmitters can pass through doors and walls within a range of 20m without interfering with other electronic equipment. 3. Can Control Multiple Sockets: The remote can control up to 4 remote sockets at the same time, and you can make everything in your home remotely controllable! 4. Complete Set: The wireless remote outlet kit includes everything you need to get started, even the remote control battery, so you just plug it in and get started, just for your needs. 5. Wide Application: Wireless remote control sockets work with almost all electronic devices, including lights, air conditioners, heaters, sound systems, and charging equipment. Specification: Item Type: Remote Control Electrical Outlet Material: ABS Model: TS 868 Signal Frequency: 433.92MHz Plug: US plug 120V Maximum Withstand Power: 1800W Remote Control Battery: 1 x L1028 alkaline batter(built in) Battery Capacity: 60mAh. Package List: 4 x Remote Control Electrical Outlet1 x Remote Control1 x Instruction Note: Because this product has a memory function, re code, to put the electrical outlet in the end, to complete the code.