"Magnetic Countdown Large Display Clock with Adjustable Volume Material: ABS Product dimensions (LWH): F7.8×2.7cm Package dimensions (LWH): 8 x 8 x3cm Weight: 80g Features EASY TO USE TWIST OPERATION - The perfect timer for cooking, baking, teaching, studying and fitness - all you have to do is twist the outer ring knob and touch the button once to start the countdown or count up. Easy to use operation for children and adults - Ships from US Warehouse! LED DISPLAY & ADJUSTABLE VOLUME - Clear large black 3 inch display with white numbers forming a nice contrast with bright function - Two alarm volume: Loud (80-90dB), Soft (60-75dB) and a mute level UNIQUE DESIGN & MAGNETIC - Designed with a special metal knob, the digital timer counts down from 99 minutes and 55 seconds to zero, or as a stopwatch counts up from zero to 99 minutes and 55 seconds. Built in powerful magnet on the back for placing on any metal surface directly for one hand use ENERGY SAVING - Power by 3 x AAA battery(not include). This Kitchen timer has 2 brightness modes effectively extending its battery life. In Normal Mode the brightness will be constant and in Power Saving Mode the digits will darken in 5 seconds and shutdown within another 5 seconds when there is no operation Package Include 1 x Magnetic Countdown Large Display Clock "