Advantage Magnetic Patient Alarms, 1 Count brand_Acelity Abena Fenestrated Foam Dressing is Abena Fenestrated Foam Dressing is a hydrophilic polymer with a three dimensional foam structure that is processed by the latest technological advancements to quickly absorb wound exudate porous and breathable Inhibit patient wandering with this efficient alarm The magnetic pull switch releases from any angle 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