Smart battery for smoke alarms connected to a phone app

Do you recall that annoying smoke alarm battery beeper? It usually happens in the middle of the night and if you are not a heavy sleeper, it will definitely annoy you. The problem is we always forget to change the battery at the right time, and the hassle of finding the right smoke detector to replace its battery. The easiest way to solve this problem is by using this smart 9V battery that connects to your phone wirelessly and reminds you of the right battery location to change at the right time. Also if the alarm sounds then the app will alert you from anywhere and ives you the option to silence it in case of a false alarm. And did I mention that it will last for more than 5 years?! This app connected 9V battery for smoke alarms costs around 34$

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