General description The Extra Loud Alarm Clock with Wireless Bed Shaker is designed specifically for heavy sleepers. It features a powerful wireless vibrating mechanism that can wake you up from up to 32 feet away, eliminating the hassle of short cables. Technical specifications Volume options: loud or normal beep sound Display: Ultra-large 1.8 inch digits Brightness: Adjustable between 0-100 Dimensions: 5.5 inches (curved screen) Power: Requires 3 AAA batteries for the vibrator (not included) Compatibility and accessories Includes: 1 Alarm clock 1 Vibrator 1 USB cable 1 English manual Usage The alarm clock is easy to use with large top round buttons. You can set two different alarms for the same day, making it convenient for varied schedules. Other information Note: Light and different displays may cause the color of the item in the picture to differ slightly from the actual product. The measurement allowed error is +/- 1-3cm.