https://www.theverge.com/circuitbreaker/2018/10/29/18037604/noiseaware-gen-3-indoor-outdoor-security-microphone

If an Airbnb host were to list their biggest fears, “guests throwing a party and creating thousands of dollars of damage” would probably be featured at the top. NoiseAware’s line of internet-connected microphones is an attempt to assuage these fears. The company just released an updated third-generation lineup that offers an outdoor microphone for the first time, via The Next Web.

Leaving internet-connected microphones in your house probably isn’t a great idea if you have even the most basic level of respect for the privacy of your guests, which is why NoiseAware’s mics are only capable of tracking overall noise levels. When the decibel level reaches a certain level for a sustained period of time, the host will get an app notification to tell them that things are awry.