Check the listing for details. Digital Darkroom Timer Clock LCD Large Count Down Clear Loud Alarm. Color: Multicolor, Condition: New. Listed at 5.99 USD. Darkroom Timer Clock 99 minutes 59 Seconds.. Easy to read; Large digits in 2.0 * 1.1 inches LCD screen Wide range of applications, Suitable for cooking, sports, resting and study Easy operated; Three buttons function up or down timer from 1 second to 99 minutes Intimate design:Magnets, hooks and movable bracket back offer more placements Loud alarm could last 30 seconds until you remove it so that you won't miss it Description:Size: Aprox. 3 1/2" Wide X 2 1/2 " Tall......80mm×56mm×22mmweight: 50guse: stick on the refrigerator, stand on desk, hang with string, etc.Key Functions:[Minute] The minute sets the key. Press down this key along, then increasing quickly, from 99 to of 00 to 00circulation.[Second] The second sets the key. Press down this key along, then increasing quickly, from 59 to of 00 to 00circulation.[Start/Stop] Start of the pause countdown.[Clearance] Press the "minute" and "second" at the same time clearance the set time.