How to destroy the sound of the square dance mom from a distance, and difficult to be found (don't talk to me about using grenades, RPGs, Gatling)

Previously seen a is 260,000 equipment, a community of 500 households, probably less than 500 dollars a household, directional equipment, generally military for strong sound interference and strong sound repellent, on the periphery of the basic no impact on the square dance every day as soon as the start of the alarm, and then cyclic playback, "please comply with the Chinese people *** and the State Noise Prevention and Control Act, to stop illegal behavior! ", the effect is remarkable!