The PMP01 is a special long range voice device (LRAD) for UAVs, with strong sound penetration, small size, light weight, low power consumption, excellent magnetic shielding performance, super high sound pressure, clear transmission of voice to distant places, and effective voice distance up to 500m. The UAV digital voice broadcasting system is used, through the LTE link, regardless of the distance, the command centre can shout in real time, remote dispatch. The standard handheld microphone effectively prevents whistling, reduces environmental noise interference and makes shouting clearer, and comes with a colour screen to visually switch audio files for more intuitive operation.