Clarity AlertMaster AL10 Product # 52510.000 Brand New Includes One Year Warranty The Clarity AL10 AlertMaster Visual Notification System provides alerts to telephone calls and the doorbell. The Clarity AL10 has optional accessories that can alert you to an audio alarm, a crying baby or the presence of an intruder. The Clarity AL10 includes a powerful bed shaker for night-time notification, a wireless doorbell, distinct flashing patterns and lighted icons on unit help you distinguish between the telephone and the doorbell. The Clarity AL10 is an ideal solution for those with a moderate-to-severe hearing loss who wish to have visual notification. AL10 Features AlertMaster AL10 Visual Alert System Designed For People w/ Severe Hearing Loss Accessories Available Customize the System to Your Specific Needs Flashing Patterns Lighted Icons Identify Each Event In The Household As It Is Happening Large 3.5 Clock Display Alarm Clock w/ Snooze Feature Plug Play Battery Back-Up Compatible w/ Existing / Previous AlertMaster Base Units