Features: [Multi-function]: mirror LED display , HD Mirror Design, 12/24 hour conversion, snooze, alarm clock, USB output, compatible with all kinds of mobile phone charging and USB power supply devices, also it can be used as a mirror in daily use, simple and fun. [Adjustable Brightness]: The display brightness can be automatically adjusted according to the ambient light, it also can be manually set to 3 levels of high, medium and low brightness. Night mode is available. [Snooze]: The big snooze button on the top can help you turn off the buzzer, equipped with a vibrator, suitable for people with severe sleep and hearing impairment. [Memory function]: When the external power supply is cut off, the time and settings remain unchanged, it needs a CR2016 button battery(without). This device needs to keep the USB cable plugged in in use. [Vibrator]: it can be placed in most you want, such as pillows, bed covers, under mattresses Specification: Name: LED Vibration Alarm Clock Output power: 5V 1A Power by: CR2016 button battery(without) Material: plastic colour: As shown Package Contents: 1 x LED Vibration Alarm Clock 1 x Vibrator 1 x USB cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.