Item Type: Electronic Timer Product Material: ABS Screen Material: LED Battery: 1 x AAA battery(AAA battery) Time Range: 0 to 12 Hours Time Error: -1.8 to +1.2 sec/day Package List 1 x Timer(Battery Not Included) 1Strong Magnet: The back of the timer contains a strong magnet, which can be attached to equipment with metal to meet various need. 2Portable: The timer is small and compact, takes up little space and can be carried around, such as in your pocket or bag, and can also be operated with one hand. 3Low Energy Consumption: The electronic timer adopts a low power screen, which can be used for a long time without worrying about the problem of frequent power failure, bringing you a longer experience. 4Multi Scene Use: The electronic timer can be used in baking, study, library and work, allowing you to grasp every minute of the time. 5Large LED Screen: With bigger and clearer LED screen, this digital timer can simple to read the time and bold numbers across the room.