FiiO F1 Dynamic Earphones Wired Headset(Black, In the Ear)

The translucent industrial-grade polycarbonate housing attracts with its look into the F1's internals. A lighter voice coil makes for faster transients and better overall sound quality. This exactly describes the Japanese copper-clad aluminum voice coil utilized in the F1, which allows it to present a transformative listening experience by clearly bringing forth even the subtlest of details within the music. The F1 includes 3 different sizes of ear tips. Not only does this allow the user to choose a size based on what is comfortable for them but also allows them to choose the sound they want since different ear tips have different sound signatures. The ear tips are made of medical-grade silicone, which are both comfortable to wear and environmentally-friendly to boot. (1 small pair, 2 medium pairs and 1 large pair included). The F1 adopts a 90 degree L-type headphone plug in order to effectively prevent accidental bending of the plug when knocked against, making it more resistant to the bustle of everyday life. The gold-plated plug not only ensures that it will not oxidize, but also minimizes audio signal loss. FiiO subjects its products to quality standards stricter than what is normally found industry-wide; all to give you the highest-grade goods. These are some of the durability tests that the F1 goes through - vibration testing, temperature tests, anti-oxidation testing, wire durability testing, cell phone compatibility testing and sound quality experience check. 1 year warranty support. 20Hz to 20kHz frequency response. 9.2mm dynamic driver with 16 ohms impendence and 1.2m cable.