The Motorola Minitor is a portable, analog, receive only, voice pager typically carrie by fire, rescue, and EMS personnel (both volunteer and paid) to alert of emergencies. The Minitor, slightly smaller than a pack of cigarettes, is carried on a person and usually left on a silent "standby" mode. When the unit is activated, the pager sounds a tone alert, followed by an announcement from a dispatcher alerting the user of a situation. After activation, the pager remains in an "open" position much like a scanner, and continuously broadcasts any audio transmissions on that channel until the unit is reset back into standby mode.