The product does not contain batteries, use 3 AAA batteries, if you need to click to buy batteries.Magnetic kitchen timer: There is a magnetic attachment on the back of the timer, which is easy to stick to the refrigerator. Never worry about not finding a kitchen timer anymore. It is very suitable as a kitchen timer, exercise timer, egg timer, egg timer, and job timer. Gashal timer: Just turn to set the time, one-button operation. Increase the time clockwise and decrease the time counterclockwise. Very suitable for special needs, children, parents, teachers, office workers/professionals and students. [Timed alarm clock] There are 3 alarm levels for the timed alarm clock from silent to 90 decibels. You can easily hear this alarm in another room. Don't worry about boiling or cooking too little. Very practical. Designed for cooking in the kitchen and controlling children's time. Two brightness modes: energy-saving mode and normally open mode (always open when working). Larger and clearer LCD screen with clear numbers. If no operation is performed, the digital light will dim within 5 seconds and turn off after 5 seconds. Energy saving.