Connectivity Technology: Wired Gold plated 3.5mm plug, Cord Length: 3.93ft(1.2m) Excellent Sound Quality! Frequency Response: 5-23,000Hz Extreme Deep Bass Ports and large 10mm Neodymium driver units deliver ultimate bass sound In-ear canal headphones that reproduce powerful and dynamic deep bass sound. The new three-model Xtreme Xplosives, or XX, series combines aggressive new design with JVC’s traditional high-quality build and style to meet the needs of today’s music enthusiasts in comfort, sound and price.The series includes an inner-ear headphone, on-ear model and an around-the-ear headphone. All three XX series models feature a bass port for outstanding bass reproduction, a durable rubber protector for impact protection and to help withstand heavy use, and a gold-plated 3.5mm stereo plug. The most compact style in the line is the HA-FX1X inner-ear headphone, which features a 10mm diaphragm with neodymium magnet and superior sound isolation by including three different size silicone ear pieces. Ergonomically designed to provide comfort in any size ear, the HA-FX1X provides a snug, secure fit. The HA-FX1X also comes with a handy carrying case. 2.6mm-thick and robust 1.2m pure copper cable (Y-type) Special hard carrying case included S/M/L silicone ear-pieces included Gold-plated 3.5mm stereo straight plug iPod, iphone and iPad compatible.