Advantage Magnetic Patient Alarms, 1 Count manufacturer_MEDLINE Size: 2 3 8" x 2 3 4" Dimensions Size: 2 3 8" x 2 3 4" Dimensions Since they are durable and more resistant to erosion from your ostomy discharge helping to eliminate false alarms and clothing tears Mounts on bed or chair Tether clips to patient's clothing Recessed on off switch on side of alarm Battery check button allows caregiver to check batteries without sounding alarm Uses 2 AAA batteries (included) Battery cover securely fastened with screws Adjustable cord Includes strap and hook and loop fastener for mounting Inhibit patient wandering with this efficient alarm The magnetic pull switch releases from any angle