noise regulation

building microphone can hear peak in audio from decibel level, then send a signal to catch noise regulation violators

buildings act as nodes to detect loud audio after hours for regular patrol every 3 - 5 blocks one microphone as a building node micrphone to detect noise level beyond peak audio level to send gsm or other wireless transmitted signal via solar recharge the size of a pack of cigarettes,

also send hidden signal of device shock or tamper or microphone mute or microphone damper to location of effected device via gps

winter heated external shell with defrost circuit

external shell water-resistant(proof)

OT(other thoughts)
https://github.com/c4pt000/shazam_for_neighborhood_audio_detection_high_gain_mic_mesh