Orange announced the launch of a mobile phone charger prototype that is powered by dance energy. The Dance Charge prototype weighs in at only 180grams and measures 4¼” x 2½”, approximately the same size as a pack of cards and the same weight as a mobile phone. The Dance Charge unit comes encased in an elasticated, black, neoprene strap with Velcro attachments which is attached over the wearer’s bicep in a similar fashion to a runner’s arm-mounted mp3 player.