It's a noise that could possibly be the last thing a person hears in Pakistan, Yemen or Afghanistan, but in West Wales the sound of drone testing is becoming an annoying nuisance.
The noise of the daily testing is enough to drive the locals crazy. A constant high-pitched buzz that has caused the residents to call it the "Buzz Box".
In the quiet coastal town of Aberporth, West Wales, the sound is becoming a daily thing. Near the town is a site where the Royal Air Force (RAF) tests its Watchkeeper drones. In good weather, the drones take off throughout the day and even during the night. As can be heard from the video, the noise is high pitched and very irritating.
ParcAberporth was built by the Welsh Government as a state-of-the-art technology park and it was claimed that the park would create 400-500 much-needed jobs for the community. The reality is a half-deserted site where the Ministry of Defence employs about 30 people to help test the Watchkeeper.
Harry Rogers of Bro Emlyn for Peace and Justice tells Polly Boiko, "There is a sense of frustration in the area. A number of people who were for it in the beginning are now opposed to it, because they didn't realise the level of nuisance that there was going to be."
The British government has already spent £2 billion on the development of drones and they are about to commit another £2 billion on a new armed drone.
A local resident, Reverend Guto Prys said, "Of course it could be better spent on hospitals and schools, rather than on killing machines."
In the meantime, residents suffer with the irritating high-pitched buzzing sounds of the drone tests on a daily basis.