The Katana Arc (first layer of defense) is an ultra-slim alarm and relay device featuring two alarms.
The first alarm is a piercing audible siren that’s activated with just the flick of a finger or by using the ingenious hidden wristband.
The second alarm is a discreet silent-alert button for use in an uncomfortable situation when a loud siren might not be appropriate.
Both alerts bypass the users locked home screen to contact the subscription-based Katana 24/7 Response Center (second layer of defense) who can contact local emergency services and/or up to seven friends and family.
The Arc can be taken into classrooms, dorms, workplaces-even through airport security. Its batteries never have to be charged. Bluetooth and a data plan or Wi-Fi connection are required.