strong sound dispels shouting loud drone

Strong sound dispels the shouting drone 1. Product overview The maximum sound pressure can reach 140dB, the longest sound distance exceeds 1,000 meters. In the effective coverage area, the sound is clear and penetrating. It can effectively pass voice information to the target. Radio command scheduling in rescue scenarios. With a strong sound dispersion mode, it can be used for group events such as strong sound evacuation and strong sound......