The Clarity WakeAssure+ can wake you through your choice of vibrating bed shaker and/or built-in loud audible alarm. Built-in dimmer switch, volume adjustment, and tone adjustment let you customize the brightness of the clock and sound of the audible alarm to your liking. The Clarity WakeAssure+ can wake you through your choice of vibrating bed shaker and/or built-in loud audible alarm. A built-in dimmer switch, volume adjustment tone adjustment let you customize the brightness of the clock and sound of the audible alarm to your liking. Features Mix match your alerting preferences (loud audible alarm, vibrating bed shaker, or both!) Loud 85+ dB audible alarm with separate volume tone adjustments to customize to your hearing Large LCD display (1.8" tall) lets you easily see the time and can be dimmed to minimize distracting light at night Visual alarm indicator on top helps confirm when the alarm is going off Battery backup (requires 9V battery - not included) lets you store your time program settings in the event of a power outage Telephone jack allows you to also be notified of landline or videophone (VP) phone calls while you sleep Snooze button Includes (1) Alarm Clock (1) AC Adapter (1) Bed Shaker (1) Telephone cord