Can be used as a count down/up kitchen timer(3 different ), alarm clock(12/24h), and second chronograph. Maximum time is to 99hour 59 min 59 sec. You can set 3 different time at the same time. The alarm is very loud that you can hear it from the room. Press the "Start/Stop" button to recall or bring back the last setting, when the timer is reset to zero, a "MEMORY" message will appear on the screen. screen can make you read the digits clearly and in a distance. Perfect and convenient for whose eyesight is not well. Handheld, Tabletop stand, Hanging or Attached onto the metal surface such as refrigerator. Small Size, to carry on everywhere you . Perfect timer for homework, exercise, gym workout, cooking, sports, games and classroom timer activities and so on. A real reminder . Name: Timer Battery: 2 AAA batteries (the product does not contain batteries) Screen size: 40 x 44 (mm) colour:White+grey Material:plastic size:88.7 x 68 x 16.2mm Package Contents: 1 x timer Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.