【Sensitive Touch & Automatic Calculation】The hidden sensor copper sheet are a provides sensitive hands touch control. Designed with auto-calculating levels, so that your progress can be seen at a glance. 【Memory Function】Touch control timer has a memory function that can be stored up to 3 times, allowing you to replace the time you want to store. It will retain previous time settings even after the timer has been powered off. 【Mini Size & Easy to Carry】275*75*30mm. Small size and light weight, easy to carry and store. Only need to install 2 AAA batteries to use. (Please note that the package not include the battery). 【Anti-Slip Design】6 anti-slip pads are correctly distributed on the back, not easy to slip. You will be happier when you play the puzzle cube with this timer clock. 【Use Occasions】A great timer for boys girls or adult game timing tools. Very suitable as competition timer, dice timer, time management tool, desktop timer, timer, training.