Makers of the vuvuzela plastic horns that have become the talking point of the World Cup have come up with a toned-down version after a growing backlash against the din at matches.

"We have modified the mouthpiece, there is now a new vuvuzela which will blow noise that is 20 decibels less than the old one," Neil van Schalkwyk, a partner at Masincedane Sport, told The Star newspaper.