Vuvuzelas have also caused problems. With a Vuvuzela, high sound pressure levels can be reached. These are about 120 dB(A) at a distance of one metre, and about 191 db(A) next to the instrument. There have been moves to prohibit the use of vuvuzelas in certain public viewing areas, because they can damage hearing, and because their sound may be louder than that of emergency broadcasts. Demand for earplugs to protect from hearing loss during the World Cup was bigger than the available supply. Many pharmacies ran out of stock. Neil van Schalkwyk, manufacturer of the plastic vuvuzela, began selling earplugs to fans. After the World Cup 2010 vuvuzelas started to be banned in other countries. In Britain Tottenham Hotspur was the first football team to ban them in July 2010, and many other football teams have since followed. They were banned because of health and safety reasons, especially because it was said that people might not hear any safety announcements.