Feature: 1. TWO DISPLAY MODES: Small electronic desk clock has two display modes, easy to operate with one screen, energy saving backlight. 2. SMART LIGHT SENSOR: Brightness changes with the surrounding environment. Daytime brightness is soft and clear display. Low brightness at night without blinding. 3. TEMPERATURE SENSOR: Smart digital alarm clocks has a built in intelligent temperature sensor, which shows you the current temperature at all times. 4. SNOOZE FUNCTION: Electronic desk clock has a snooze function, so that people can sleep more and make it easier to get up in the morning. 5. EASY OPERATION: Digital alarm clocks features a simple, stylish and compact streamlined design with intuitive setting buttons, suitable for children and the elderly. Specification: Item Type: Digital Alarm Clocks Material: ABS Battery Type: 3 x AAA Batteries (Shipped Without Batteries) Function: 1. LED Time Display 2. 12 24-Hour Conversion 3. Alarm Clock, Snooze Function 4. Temperature Display (Degrees Celsius ℃, Fahrenheit °F) 5. Temperature Range: -10 ℃ -50 ℃ 6. Night Mode Setting (18:00-06:00) 7. Time And Temperature Switch Display 8. Two Levels Of Brightness Adjustment 9. Five Function Buttons (MODE, ALARM, SNZ, LIGHT, UP, DOWN) 10. Time Memory Function (3 x AAA Batteries For Time Memory) 11. When Using The USB Cable, The LED Indicator Will Always Be On Size: Approx. 11.5x2.9x4.7cm / 4.5x1.1x1.9in. Package List: 1 x Digital Alarm Clocks1 x USB Cable1 x Instruction Manual Note: 1. Install the battery or plug in the USB cable can be used.2. Please allow some error due to manual measurement.