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 easily set 3 different time at the same time. The alarm is very loud that you can hear it from room. the "Start/Stop" button to recall or bring back the last setting, when the timer is reset to zero, a "MEMORY" message appear on the screen. Large screen can make you read the digits clearly and easily in a distance. Perfect and convenient for whose eyesight is not well. Handheld, Tabletop stand, Hanging or Attached onto the metal such as refrigerator. Small Size, easily to carry on everywhere you want. 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: 2 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.