The HA-FX300 in-ear headphones from JVC employ several sound-enhancing technologies to bring you the best possible sound quality in a lightweight and comfortable design. An aluminum evaporation diaphragm reproduces high-frequency tones more accurately than most conventional methods. JVC's Bi-METAL structure houses the drive unit in a stainless steel base that's wrapped in a high-specific-gravity brass ring to eliminate vibration and energy loss, enhancing the performance across all frequencies.
The oxygen-free copper cable provides high-quality signal transfer, and the standard 3.5mm mini plug is compatible with a wide variety of devices, including the iPhone. For the best comfort and secure fit, three sizes of silicone eartips and one pair of memory foam eartips are provided. In addition to great comfort, this in-ear design also provides excellent isolation from ambient noises. A handy carrying case is provided for storing and protecting your headphones.