Feature:1. 110 Decibels: This clock has a loud volume up to 110 decibels, this alarm clock is sure to shatter your windows and force your eyes to open.2. Red Alarm Light: Equipped with a red flashing warning light, you are assured that you will wake up in time!3. Shake Your Bed: You can turn off the sound of the alarm, but the vibration will not stop! A powerful shaker will wake you up!4. For Everyone: This clock is suitable for people of any age, as long as there is a need to get up early, please choose this alarm clock!5. ABS Material: Made from premium ABS material, this clock is not likely to deform and also has excellent durability for long working hours.Specification:Item Type: Vibrating ClockMaterial: ABSBattery: AAA Battery x 3 (Delivered Without Battery).Package List:1 x Alarm Clock1 x Vibrator1 x Data Cable1 x Instruction ManualNote:1. The product needs to be installed with batteries and plugged in to use, only plugged in or only installed with batteries to use is prone to resetting the settings after a power outage and battery power is quickly depleted; 2. Doesn't work and doesn't start you need to first check if the brightness and volume adjustment knobs on the left and right side of the alarm clock are on.