The earphone is speciafically designed for Apple iPhone. The Metal Bullet Earphone integrated voice functionality gives you the freedom of hands-free phone calls. A built-in microphone with power off/on button, and a shirt clip for comfor and ease of use. The button is easy for music control, just twice clicks to display your tunes. The Metal Bullet Earphone uses the same speaker technology and...
“I really loves these JVC HA-FX3X iem. I have been searching for something that can hit as hard in the sub bass as my desk 4.1 system, which I did find the Sony MDR XB950 over ear and the MDR XB90EX iem, but neither had the highs for the snare and high hat. I found the JVC HA-FX201 that has a great sound signature, but it begins to distort under huge sub bass pressure. (I make bass music) I...” --aafanatic