Able Planet SI250 True Fidelity Sport In Ear/Hook Headphones, Black Compact design with lightweight chrome housings for terrific portability and durability for daily use. Brushed black badges provide a stylish look The dual-element architecture with 8mm neodymium drivers and magnetostrictive Linx Coils provides clear audio with a wide frequency response Patented and award-winning LINX AUDIO technology provides rich bass, clear treble and intelligible speech to recreate a live audio experience. It also increases perceived loudness without increasing volume to help reduce the risk of hearing damage There are 3 different sizes of soft ComfortFit eartips, allowing you to find the best in-ear fit for stability, comfort and noise isolation so you can focus on your music instead of your environment Soft and flexible ear hooks provide additional support, ideal for those with active lifestyles