Features: Multiple Data Display: Displays the current humidity, temperature, comfort level, and time. Large fonts for clear reading. ℃/ ℉ Selectable: Support ℃ or ℉ temperature display for convenient use, satisfy different needs. Comfort Levels: DRY/ COMFORT/ WET, 3 comfort levels to remind you of the real-time state indoor. Alarm Clock Snooze: 12/ 24H time format selectable, alarm clock with snooze function (extra 5 minutes sleeping). Timer: Dual function of counting time and countdown time supported. Wide Application: Totally wireless and tabletop and magnet-mountable design. Suitable for home bedroom, living room, baby room and office, etc. Battery Operated: Need 1 * CR2032 battery to power the unit, easily replace the battery.