This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com Deep, clear sound enhanced by exclusive TriPort technology for crisp highs and natural-sounding lows. Connectivity Technology: Wired Proprietary Stay Hear tips, in three sizes, conform to your ear's shape to stay comfortably in place all day Sweat and weather-resistant; engineered and tested for lasting quality and durability Matching protective carrying case included Bose Sound Sport in-ear headphones deliver deep, clear sound for the music you love, with a durable design that stands up to the rigors of your day. Exclusive TriPort technology provides crisp highs and natural-sounding lows, while acoustic ports are positioned to resist sweat and weather, and hydrophobic cloth keeps moisture out. Proprietary Stay Hear tips conform to your ears' shape, so they stay comfortably in place all day long. They even include a matching carrying case for storage and added protection. Meet the headphones engineered to go wherever life takes you. Included: Sound Sport in-ear headphones; 3 pairs Stay Hear tips (S, M, L); carrying case; clothing clip.