[Accurate Timing] Precise countdown to the second for meticulous time management [Silent LCD Display] Quiet LCD screen design with no ticking sounds, perfect for silent timing [Versatile Countdown/Countup] Supports both countdown and count-up modes, adjustable from 00-99 minutes and 0-55 seconds [Flexible Placement Options] Built-in stand for tabletop use, and magnetic backing for secure mounting on iron surfaces [Adjustable Volume] User-friendly Three-level volume adjustment to meet your different needs Specifications: Product size: 118*66*26.5mm Battery life: about 3 months Working temperature: 0-50 Volume: mute/maximum volume: 80-90DB/minimum volume: 60-75DB Working voltage: 4.5V (3 x AAA batteries) (not included) Low battery warning: yes Time difference: 1s Time range: display minutes and seconds Maximum timing: minutes 00-99; seconds 00-55 Sleep mode: the product will enter after 5S without timing Package included: 1 x Timer 1 x English and Chinese User Manual