[Wake Up Easily with Strong Vibration]: In contrast to traditional alarm clocks, our super loud alarm clock comes with a vibrator. For those who don't want to be woken up by the bell or don't want to disturb others can choose to use the vibration mode alone as a bed calling service. [Multiple Wake-up Modes]: In addition to wake up with vibration alone, you can also choose to wake up with ringing alone, or ringing plus vibration together. Our super loud ringing sound is enough to wake up deep sleepers or people with poor hearing or the elderly. [Adjustable Volume & Brightness]: This vibrating alarm clock supports 4 levels of volume adjustment (0-110 dB range) and 5 levels of brightness adjustment. No need to worry about the screen being too bright to fall asleep or too dark to see the time, while the adjustable volume provides a variety options for the elderly, teenagers, or those with limited hearing. [Easy Snooze & Dual Alarms]: When the alarm goes off, press the button on the vibrator or touch the SNOOZE button on the top of the clock to enter the snooze mode and snooze for 9 minutes. Long press the button on the vibrator for 2 s to turn off the alarm. 2 sets of independently alarms are also convenient for different schedules. [USB Charging & Memory Function]: This bedroom alarm clock needs to be plugged in and has a memory function when 2 AAA batteries(no batteries) are inserted, there is no need to reset the alarm clock after an accidental power failure and reboot. However, when powered by batteries alone, the screen will not light up and the vibrator will not vibrate. [Super Large HD Screen]: The 7.5-inch large screen alarm clock and ultra-clear font display allow you to check the time in the entire bedroom. White text, there may be slight color difference or difference in the actual product, which will not affect the use Colour:Black Material:plastic Package Contents: 1 x Vibrating Alarm Clock set 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.