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Could you manage without using your phone inside a concert to record it or tell your friends what it's like? Some artists including Alicia Keys and Guns N' Roses think the phones spoil the atmosphere. So one solution they're using comes from a San Francisco based company which lets you take the phone in, but stops you from using it. Newsday spoke to Graham Dugoni, the founder of Yondr, the company behind this product. (Photo: Fans at a concert of US Rapper 50 cents in Lebanon in 2006. Credit: AFP/Getty)