Ankit 'To Live, To Love' Butterfly Earphones - Ergonomic, Noise-Isolating with G-Bass Technology Ergonomic: The special curved design of our earplugs fit your ears naturally and comfortably Noise Isolation: Our ergonomic earplugs and the metal-shielded driver blocks out external noises G-Bass Technology: Delivers rich sound with clear low notes (Bass) and few softened sharp notes Custom Fit: Comes with "5" different sizes of comfortable silicon earbud tips for all ears 3.5mm Gold Connector: Works with all your iPods, iPhones, Zunes, PSPs, Nintendo DSs, and what not..