Sennheiser Electronics India Pvt. Ltd offers Wired Headphone with Two Detachable Single-sided Cables. Sennheiser Electronics India Pvt. Ltd is an ISO 9001:2000 certified company. The Company also manufactures various types of studio microphones The Wired Headphone with Two Detachable Single-sided Cables, Model HD 438, has powerful neodymium magnets for an enhanced bass experience. This Wired Headphone has ergonomic design provides for a superior comfort fit and a superb all-round listening experience. This Wired Headphone has frequency response of 17 - 22500 Hz.