ADA Visual VibeAlert Alarm Clock with Bed Shaker, USB Charging Port

Specifically designed with your deaf or hard-of-hearing guests in mind. Your guest can choose to use the adjustable audible alarm, the bed shaker, the built-in lights or all three. As an added convenience, a USB port is included for charging smart devices. Large snooze button and 9V battery backup. Features include an extra-large digital time display with an adjustable back light to dim or turn off while sleeping. Three adjustable volume settings and three adjustable frequency settings. Choose your preferred 12 or 24-hour selectable format and tailor the snooze to suit your needs anywhere between 5 and 60 minutes. The smart dual power adapter switches between 110V- 220V allowing it to be used in the US and overseas. Convenient size for home or travel. 1-year manufacturer's warranty.