F3 Kitchen Timer Large Screen Magnetic Time Manager Student Learning Alarm Clock - Black •[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