Philips SHE5920 Virtual Surround Sound In-Ear Headphones (Discontinued by Manufacturer) Virtual Surround Sound design Asymmetric cabling system that keeps the 1.2 meter cable tangle free Copper Cladded aluminium wire improves sound quality with neodymium magnet to enhance bass performance Carrying case included to protect headphones when not in use 15mm Speaker driver optimizes wearing comfort and delivers crisp, clean, non-distorted sound