Sennheiser CX 400-B Lightweight In-Ear Stereo Headphone (Discontinued by Manufacturer) Ideal for use with all MP3, CD, DVD players and portable gaming systems High-performance dynamic speaker systems for powerful, bass-driven stereo sound Superior fit in the ear canal due to enhanced ear adapters in S, M and L sizes Extremely small and lightweight Includes cable clip, extension cable, and carrying pouch for convenient handling and storage