Some people think that the two circles on the alarm's surface are buttons that you use to sound the alarm. However, the alarm is actually activated by pulling the keychain out of the alarm, and it's highly unlikely you'll do so on accident. If you do, simply place the keychain back into the alarm and it will stop sounding.
SABRE's Personal Alarm - Keychain with LED Light and Personal Alarm with Key Ring both require 3xLR44 batteries, which are included. The Mobility Device Alarm (great for seniors) requires 2xAA batteries.
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