Rolson 4 Pack Window/Door Alarm Set

Alarm - A device which emits a sound at a pre-set time/event

Batteries - Portable Power sources in cell form

Cable - A series of wires bonded to form a single thread

Set - a group of items usually related to one another. Some objects cannot function without the complete set of items.

Wireless - A wire free device that uses radio and microwaves to send signals.

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