
It's basically a wireless doorbell. When the button is pressed it will ring like any doorbell - only once unless the button is pressed again. This can be a problem if you're a heavy sleeper or if you're outdoors. While that does the trick, there are better options that work like a nurse call and keep ringing until turned off.

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π CZUR Assistive Cover 13.14-inch: Splash Resistant, Adjustable Hook & Loop, PVC Material for CZUR Book Scanner - Office & Home - Black
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INSWAN INS 2 Dual Mode Supplemental Conferencing
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