In most states, an undisclosed audio or video device placed in the interior (non-common) of a private residence would be illegal and could also result in a civil lawsuit against the landlord. 

I have a BS and MS in Engineering and I design Class III medical devices for a living.   

@Rick RoblesI replied on my cell phone and it doesn't link to the thread names, not sure why....In any case, I put your name here so it would ping you that you had a response on your thread, assuming you activated notifications.TJ

Will you give me your cell phone number or home number?

I didn't try using it that way, but the device does allow for that.

We found a device for smoking pot. 

@JD MartinThe guy had no phone at home and no cell, believe it or not.

Tenant erected a 12 x 12 outdoor extendable living accommodation shed in the backyard without any permission installed permanent tiles, ran wiring in the shed for lighting, fans, for electrical devices and also for air conditioning.

I just started using an ultrasonic device repellant device.

Please leave your full name, cell phone number, and the property address and I will call you back as soon as I can.