Digital LED Display Alarm Clock USB and Battery Operated Mirror Face Design 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: dim and bright. Features: Large LED display for clear reading, time and temperature switch display. °C / °F mode and 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 dim the luminance during the night time. With alarm and snooze function. Press UP key to adjust the LED brightness(2 levels). 2 Power Supply: powered by USB cable(included) or 3 x AAA batteries(not included). Specifications: 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 x AAA batteries(not included) or DC 5V Product Size: 138 x 55 x 34mm / 5.4 x 2.16 x 1.34in Product Weight: 101g / 3.56oz Package Size: 14.5 x 7.5 x 4.3cm / 5.7 x 2.95 x 1.7in Package Weight: 145g / 5.11oz Note: 1. When powered by 3 x AAA batteries(not included), press SNZ/LIGHT button, the LED will light on for 5s. 2. When plugged with USB cable, the LED light will be on always. Package List: 1 x LED Mirror Clock 1 x USB Cable 1 x User Manual(English) Note: 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. Sold by-Minnanxin