【Mirror Alarm Clock with Temperature】 - Keep track of indoor temperature with this reliable thermometer. Temps can be displayed in either Fahrenheit & Celsius, and it has a wide temperature range of 32-122°F / 0-50°C, Accuracy: ± 2°C.【SNOOZE MODE】Digital alarm clock snooze button is located on the top of the clock and can be easily turned off, allowing you to get 5 to 60 minutes (settable) of extra sleep time.【ADJUST BRIGHTNESS&NIGHT MODE】 Electronic clock LED display screen has 2 levels brightness: lowand high light, you are free to choose the brightness by press the “light" button; If the night mode is ON, this clock will change the brightness to darker automatically, during the nighttime (18:00-6:00).【POWER OFF MEMORY】- need to plug it in for functions working properly, you can also insert 3*AAA size battery(Not include) to backup time & alarm setting in case of a power outage.【Warm Tips】When using USB power, the screen will always be on, but when using battery power, the screen will turn off after 10s to enter power saving mode.If the alarm clock does not light up, check whether the two ends of the data cable are not in good contact or not plugged in, or check whether there is a problem with the charging port; check whether the batteries are properly placed, please ensure that the positive and negative poles of the batteries are correctly placed.This is a very simple alarm clock, without those complex features, but enough to meet our daily needs. Focusing on the alarm clock itself makes our lives easier!Perfect alarm clock for bedroom, beside, nightstand, desk, shelf and table.

Functional Analysis:

Time display: Switchable between 12-hour and 24-hour formats

Indoor temperature: Celsius/Fahrenheit temperature unit convertible

Date display: Time, date, and temperature can be displayed in rotation

Alarm function: Set weekday alarms and snooze durations

Brightness adjustment: Can be manually adjusted or automatically switch to night mode

(Default: Night mode is activated from 6 PM to 6 AM, with the screen automatically dimmed to half brightness.)

Two power supply methods:

1. Powered by three AA batteries, the screen does not stay on (the product does not include batteries).

2. Powered via USB, the screen can stay on (does not store power)