The alarm clock has Mode, Up, Down, Snooze/Light four function buttons. LED screen displays hours and minutes. Temperature detection range is between -10 degree Celsius to 50 degree Celsius. Four gears of brightness can be adjusted and it will be the lowest brightness between 18:00 to six clock in the morning. Item Name: Alarm Clock Material: ABS, PC Features: Digital Display, Temperature Detection, Cute, with LED Size: 13cm x 11cm x 6.5cm/5.12" x 4.33" x 2.56" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Alarm Clock 1x Charging Cable 1 x User Manual