The long range acoustic devices system has strong sound propagation directivity and has little impact on the surrounding irrelevant areas. It has been used as a non-lethal dispersal weapon by military and police in many countries, including China and the United States. Similar devices are equipped on Chinese and US warships patrolling the Gulf of Aden, and they have played a huge role in anti-piracy operations.
The mass notification speaker system can also be used for long-distance warning at highway entrances and exits, and for driving away insects and birds in forests.