Description: This is a great digital clock with mirror function. It can display time in 12H/24H hour format and indoor temperature in °C/°F. The LED luminance is adjusted: and bright. Features: Large LED display for clear reading, time & temperature switch display. °C / °F mode & 12-hour / 24-hour mode switchable. Mirror face design, can be used as a small mirror. Indoor thermometer function, temperature range: 0°C~50°C(32°F~122°F). Night mode function: the LED display will automatically the luminance during the night time. With alarm and snooze function. Press "UP" key to adjust the LED brightness(2 levels). Specification: Power Supply: powered by USB cable(included) or 3 * AAA batteries(not included). Material: ABS shell Display Color: White / Blue / Green / Red (Optional) Temperature Range: 0°C~50°C / 32°F~122°F Hour Format: 12H / 24H Night Mode Setting: Default Period 18:00-06:00 Power Supply: 3 * AAA batteries(not included) or DC 5V Product Size: 14 x 3.4 x 5.5cm/5.51 x 1.34 x 2.17inch Product Weight: 98g Package Size: 14.5 x 4.3 x 7.8cm/5.71 x 1.69 x 3.07inch Package Weight: 145g Package Includes: 3 Pieces LED Mirror Clock 3 Pieces USB Cable 3 Pieces User Manual(English)