Features: 1. This digital alarm clock has an LED display, easy to read, and an ultra-thin body; due to its simplicity, it is one of the best alarm clocks in the bedroom. This high-quality digital clock allows you to wake up every morning. The snooze button can help you easily turn off the alarm without opening your eyes. You can set a snooze time of 1-60 minutes (the default snooze time is 5 minutes). 2. Brightness adjustable: clear and comfortable visual effect, it will automatically dim at 6:00 pm. When plugged in with a USB cable, the LED light will always light up. When using battery mode, the screen will automatically turn off after 10 seconds. You can activate the screen by voice, or press any key to turn on the screen. In any mode, press and hold "LIGHT / SNOOZE" for 3 seconds to turn off the screen. 3. Powered by USB or battery: The alarm clock can be powered by a USB cable or 3 AAA batteries (not included). Note: If the alarm is running on battery, the alarm will be on for 5 seconds and then off, and then you can activate the screen by clapping your hands. Save energy and make you sleep better at night. If via USB, the clock will always be on. 4. Easy Use: The clock has been designed with absolute simplicity in mind and you will have no problem whatsoever operating it. 5. Ideal Gift: It is an excellent gift idea for Birthday, Graduation, Housewarmings and New Year ect. Specification: Name: Alarm clock Material: ABS Battery: 3*AAA battery (not included) Size: 16*6cm Color: black + red/black + white/black + green Packing included: 1 * Alarm clock 1 * USB line 1 * Instruction Note: 1. Please allow 1-3cm (0.4-1.18") difference due to manual measurement and slight color variation for different display setting. 2. Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand.