Ultimate Ears™ 600vi Noise-Isolating Headset features a microphone & on-cord controls for calls & music. It produces extended high-frequency response & a fuller soundstage, so you feel as though you are experiencing the quality, energy & emotion of a live performance. It can be worn straight down or over the ears, so you get a secure fit whether youre running errands or running at the gym. The noise-isolating design reduces outside noise by 26 d Bs & lets you focus on the music. With seven sizes of ear cushions, you know youll get the right fit. & a pocket-ready hard case keeps your earphones sounding their best. Your headset delivers detailed, immersive sound, crisp calls & noise isolation-and it works with your iPhone™*, Black Berry**, iPod or MP3 player (with a 3.5 mm jack). * The remote & mic are supported by iPod (4th & 5th gen.), iPod classic, iPod Shuffle (3rd gen.), iPod touch (2nd gen.), & iPhone 3 Gs. ** Volume control functionality not available with Black Berry devices. Audio is supported by all iPod, iPhone & Black Berry devices. On-cord controls let you answer calls, change tracks & adjust volume without taking your iPhone™*, Black Berry or iPod out of your pocket. * The remote & mic are supported by iPod (4th & 5th gen.), iPod classic, iPod Shuffle (3rd gen.), iPod touch (2nd gen.), & iPhone 3 Gs. ** Volume control functionality not available with Black Berry devices. Audio is supported by all iPod, iPhone & Black Berry devices. Balanced, top-firing drivers produce extended high-frequency response & a fuller soundstage, so you feel as though you are experiencing the quality, energy & emotion of a live performance. Your headset can be worn straight down or over the ears, so you get a secure fit whether youre running errands, or running at the gym. The noise-isolating design reduces outside noise by 26 d Bs, so you can tune out the world & focus on your music.