20 countdown programs, used for ON or OFF countdown switch. The range of time setting includes hour, minute and week. It can be switched randomly on or off. When your house is vacant for a long time, it is safer. You can set and switch between summer and winter modes. Built-in rechargeable battery for memorizing programs. Manually switch on and off automatically. This product is made of ABS. The length of the product is 12.5 cm, the width is 6.8 cm and the thickness is 8 cm. This product is suitable for electric rice cookers, water dispensers, heaters, liquid electric mosquito coils and other electrical appliances, electric car batteries, digital camera batteries, mobile phone batteries, home safety, etc. Item Name: Timer Outlet Material: ABS Power Supply: US plug is 120V 60HZ, EU/UK plug is 230V 50~60Hz Batteries: Rechargeable Battery for more than 100 hours Rated Power: 220240V 16A 3000W Operating Temperature: 0-55 Degrees Celsius Maximum Programmable Time: 7 Days Time Accuracy: +/- 1 Second/Day Minimum Interval Time: 1 Minute LCD Display: LCD Installation Method: Plug-in Switch Way: TUV R/C Relay Barrier Property: IP20 Timing Range: 1 minute~99 hours and 99 minutes Accommodation Mode: Timer/Manual Control Size Details: 12.5cm x 6.8cm x 8cm/4.92" x 2.68" x 3.15" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Plug-in Timer Switch (with Button Battery) 1 x English Manual