Get ready to kick your tunes up a notch. Featuring a Bass Boost System (BBS) the hi-Zip enhances the bass of your music for your listening pleasure. The ergonomic shape makes this set of earphones completely soundproof (so no one can overhear your guilty pleasure music) and guarantees a crystal clear sound. In addition to looking uber-cool and futuristic the unusual zipper design also prevents knotting ensuring that your cord never gets tangled again."
Includes 3 sizes of earphones. Compatible with iPhone 4/4S, iPhone 5, iPod, many mobile phones, and every music source that uses a 3.5mm jack. 10mm speaker. 32Ω impedance. 1mW rated input power. 3mW max input power. 3.5mm plug type.