General description The Extra Loud Alarm Clock with Wireless Bed Shaker is designed specifically for heavy sleepers, the deaf, and those with hearing impairments. This innovative alarm clock features a powerful wireless vibrating mechanism that can wake you 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 levels between 0-100 Dimensions: 5.5 inch LED curved screen Power: Requires 3 AAA batteries (not included) Compatibility and accessories Includes: 1 alarm clock, 1 vibrator, 1 USB cable, 1 English manual Installation Place the alarm clock on a bedside table or flat surface Insert 3 AAA batteries into the vibrator Usage Set two different alarms for the same day Use the USB charging port to charge your phone or other devices Adjust the volume and brightness settings to your preference Other information Note: Light and different displays may