Logitech Ultimate Ears 600vi Noise-Isolating Headset - Dark Silver Delivers a noise-isolating, 3D soundstage experience so real it feels live.Connectivity Technology: Wired Allows crisp, noise-reducing talk with an integrated microphone Answers calls from accessible on-cord controls for your iPhone, BlackBerry* Plays, pauses, changes tracks, and adjusts volume from on-cord controls.* (*Volume control functionality not available with BlackBerry devices) Fits comfortably with five sizes (XXS-L) of soft silicone ear cushions and two pairs of Comply Foam Tips