Sennheiser CX 300S Bass-Driven Lightweight In-Ear Headphone (Discontinued by Manufacturer) In-ear, sound-isolating design ideal for use with all MP3, CD, DVD, MD players and portable game systems with 3.5mm headphone sockets Includes three different sized ear adapters to ensure a perfect fit Offers powerful, bass-driven stereo performance Features 21-inch asymmetrical cable and 3.5mm L-shaped plug Stylish silver finish design; comes with two-year manufacturer's warranty