Time to get smartphones off the dancefloor?

Getty ImagesA new nightclub is opening this week with a strict rule that your smartphone camera must be covered with a sticker.Amber's in Manchester is the latest in a handful of venues in the UK to enforce the policy - but in cities like Berlin, renowned for its nightclubs, it's the norm.Amber's director Jeremy Abbott told the BBC the club made the decision because "we really want the music and the experience to…