A body-worn receiver capable of receiving any one transmission from any 318MHz Silent Call transmitter. This unit utilizes three components: receiver, transmitter and charger. A vibration alerts the wearer when the transmitter is activated. Range up to 200 feet. Rechargeable 9-volt battery and Battery Charger are included to increase battery life. A fully charged battery provides around 35 hours of continual use. Five year warranty. One year warranty on battery charger.