AliMed Basic Magnetic Pull Cord Alarm is the most versatile of all our alarms and comes with universal fitting for bed, chair, and toilet. It features dual tone/volume: 95 dB (high) or 85 dB (low), LED light for low battery indication and on/off switch. Includes hook-and-loop fastener for wheelchair and holster with mounting screws for headboard or toilet installation. Adjustable cord (18" -58") suits any situation and has a strong alligator clip for attachment to patient's clothing. 2"W x 5-1/4"L x 1"D. Batteries included. Patient Alarms - Frequently Asked Questions