Using drones with speakers was popularised by the DJI Mavic Enterprise product. In regards to the recent events, Acecore Technologies have launched an alternative that might give DJI a run for their money. The drone is called "Zoe" and comes equipped with a loudspeaker & gimbal camera payload. The drone can be transported on the back of a truck with automatic RTK precision take-off and landing. Flight time is 30 minutes in the real world, even during heavy wind and rain.