Voice Control FunctionThe digital clock has a voice control function, that is, when the clock detects a sound exceeding 90 decibels, the LED display will light up. Please note that you can also light up the digital alarm clock by touching the "SNOOZE/LIGHT" key, and while you keep the clock connected to power, the sound control function will be turned off and the display will always be on 2 Alarm Clocks with Snooze FunctionThe bedside clock has dual alarm clocks, you can set 2 alarm clocks in a day to plan your time appropriately. There are 13 ringtones for you to choose from, and the volume can also be adjusted. With the snooze feature, you can get an extra 5 minutes of snooze by simply touching the snooze/light button. This will loop until you press any other key Temperature Display & Adjustable BrightnessThe clock can also be used to test the indoor temperature, you can switch (Celsius) to (Fahrenheit) with the up button. During the charging process, the LED screen is always on, automatically adjusts the 3-level brightness according to different periods, and automatically dims from 7:00 pm to 7:00 am. The brightness can also be manually adjusted to 4 levels USB Powered & Built-in Backup BatteryEquipped with USB charging cable for power supply (no adapter) and built-in 1200mAh lithium-ion battery, the bedroom clock ensures long standby time when fully charged. Built-in backup battery saves charging clock settings in the event of a power outage. (Note: Please connect USB port or use only 5V/1A and 5V/2A adapter to charge the clock) Modern Design & Lifetime WarrantyThe LED alarm clock has a mirror surface that looks beautiful due to its stylish design. You can put it on your desk, bedroom, living room to decorate your room.