Yurbuds Ironman Series, Color:Red, OS Ear-lock Technology: Won't fall out Guaranteed Ergonomic shape: Designed to fit your ear Exceptional sound: Clinically proven acoustics Ultra-soft comfort: Comfortable for hours of use Updated kevlar wiring covered in nylon fabric for added strength, increased sound quality and anti-tangle cables Updated angled plug New rubber stoppers at the end of the earbud to block cord rattle