A durable, advanced design and ergonomic StayHear tips provide a secure, comfortable fit for in-ear headphones. Enhanced acoustic engineering enables smoother, more natural sound, and an integrated three-button remote and microphone allow for easy audio control and hands-free calling with the Apple iPhone. A proprietary TriPort structure results in a richer audio experience with natural-sounding low tones and overall auditory presence. Moisture-resistant construction protects from sweat and rain, and a packaged Reebok armband secures your music device in a safe and easy-to-reach location. Color(s): blue, purple. Brand: BOSE. Style Name: Bose 'SIE2i' Sport Headphones. Style Number: 638274_2.