Super tough full-metal earphone including metal remote control and metal cable splitter<br>Precision CNC machined internal sound cavity prevents vibrations and distortions<br>Custom designed drivers unit pump out deep bass， sonorous midrange and crystal highs letting you hear exactly what the artist was feeling in the studio<br>Noise isolating in-ear fitting， block out external noise and give you pure sound<br>OFC material core wrapped with TPE material ultra-flexible， tangle-free cord， which is adopted by HiFi headphones only<br>In-line control & Mic for handsfree phone calls<br>Music control buttons-Pause/Next/Previous<br>3 sets S/M/L size soft ear tips included， comfortably fit everyone's ear<br>Gold-plating 3.5mm audio plug<br>Works with all devices which has 3.5mm audio output interface， like iPhone/iPad/iPod/Cellphone/MP3 Player/PC/Mac etc<br><br>Specification:<br>Driver Unit: 2 x 8.6 mm<br>Frequency Response: 20-20K Hz<br>Impedance: 16 ohm ?15%<br>Sensitivity (at 1K Hz)?98 dB?3 dB<br>Audio Plug: 3.5 mm<br>Cord Length: 3.9 ft (1.2 meter)