Big Knob for easy operation: Set the timer by adjust the knob Large LED Display: Numbers allow you to clearly 3 Alarm Volume Levels: mute (0db), medium (60-75db), and loud (80-90db) for Various Scenes. Power-saving Mode: when without operation, the digits will be darkened in 5 seconds, and no display after another 5 seconds. Magnet Design: Can be placed on any iron , such as refrigerator, microwave, etc. Count UP/Down Timer: Works perfectly as kitchen timer, kids timer, teachers timer, students timer, classroom timer, cooking timer, bathroom timer, meeting timer, game timer, sports timer, egg timer, etc. Model Name: K52 Working Voltage: 4.5V (3pcs AAA batteries) Screen: LED Digital Display Time Setting Range: 0-99 minutes, 0-55 seconds Battery Life: more than 90 days Working Temperature: -10~50 Colour: black Material: metal Size: 7.8 x 2.8cm Package Contents: 1 x Magnetic Digital Kitchen Timer Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.