1、Small and portable timer supports complete functions with built-in memory function during shutdown. 2、Non-radiation product has excellent quality, this clock supports three prompt methods, convenient and quick for simple operation. 3、Timer can shut down with memory function. Press and hold for ST / SP button to turn off and press any button after turning off to turn on, the memory is still there after turning on. 4、Portable timer supports 99 hours and 59 minutes long, suitable for studying in exams, working, cooking and other places. 5、With alarm clock function and snooze function, wake-up alarm clock can set sound prompt or mute vibration prompt. After alarm sound, press MODE button to start snooze function. And after snooze icon z flashes for 8 minutes, the alarm will sound again, press MODE button again to expect snooze by pressing for ST / SP to pause the alarm clock, which can works as clock, alarm clock or timer. 1 x Timer Item Type: TimerMaterial: ABSMovement: ElectronicShape: SquareDisplay Type: DigitalUltra-Long Chronograph Positive Timing Range: 1 second 一 99 hours 一 59 minutes 59 secondsTips: Sound, vibration, flashing lightsSize: Approx. 75 x 58 x 21mm / 2.95 x 2.28 x 0.83inWindow: Approx. 64 x 39 x 1mm / 2.52 x 1.54 x 0.04inBattery: 2 x AAA batteries (not included)Placement Method: Bracket / magnet.