Some reports expected that the iPhone 5C will be released along with the new model iPhone 5S.
iPhone 5C is reported to be a lower cost, plastic handset. We've seen tons leaked iPhone 5C and iPhone 5S parts but we're still not sure about anything.
Sonny Dickson recently showed off some photos of volume buttons which belongs to the plastic iPhone 5C. The buttons come with several colors (black and red). The buttons are not round-shaped, it's pill-shaped button design which seems to be good for a plastic iPhone.