Noise Detection Technology - Preventing Airbnb Parties

[Account Closed]

Has anyone bought a noise detection device for your airbnb? I had a bad guest this past month after a year hosting and I am thinking of getting a noise detection device. 
I thought they would just be plug in and go but I only see two big ones on the market which are Noise Aware and Minut. They seem expensive and a subscription service. Does anyone have experience with these or know about another way to prevent airbnb parties/loud noise? The guests had loud music and were shooting guns which woke up multiple neighbors. 

Thanks!

[Nathan Gesner]

Quote from @Account Closed:

Why do you need a noise monitor? You have neighbors that are willing to call when there is a problem, so just use them.

Apologize to your neighbors and pay them a $100 gift card for letting you know. Ask them to report any problems to you right away so you can deal with it. Reward them for their faithfulness. It's cheaper and easier than technology and restores the relationship.

Your house rules should be clear that guests can't use firearms. I have a house on 5 acres in the Wyoming mountains and hae never had anyone shooting on it (surprisingly).