The Caregiver is notified by an audible and visual alert when the resident is about to get out of a bed. The fall monitor features an On/Off switch that prevents the alarm from sounding when the caregiver moves the resident from bed or chair, or when changing clothing or linens. Features: Low Cost with full range volume control. Visual Status Light when in use, the visual alert light blinks every 4 seconds. This lets the caregiver knows that the system is functioning properly. Nurse Call Capability enables you to use with existing hard-wired nurse call systems. Battery Operated (3-AA, Not Included)