Features: 1Safety: This timer outlet has power off protection. Once it detects excessive or low voltage it automatically cuts off the power supply protecting your appliances from voltage fluctuations. 27 Day Programmable Digital Timer: Simple and easy to use. Plug and play. The summary procedure set operation. Easy to read super digital screen. 3Built in Battery: Plug in outlet timer ensures continuous operation and retains your preset schedule even during power outages or unplugging providing convenience and peace of mind. 4 : Designed for use with voltage this timer outlet is compatible with various household appliances and electronics. 5Versatile Compatibility: Suitable for various types of appliances such as refrigerators washing machines air conditioners etc. It is an essential device for protecting your appliances from voltage issues and ensuring a comfortable lifestyle. Specification: Item Type: Timer OutletMaterial: PCProduct Size: Approx. 13x7x6cm / 5.1x2.8x2.4inPower: 1875WBattery Type: 1 x 15V Ni MH Battery (Shipping with)Battery Capacity: 1500-1800mAh Package List: 1 x Timer Outlet1 x User Manual