Today only, Logitech offers its Logitech Ultimate Ears 600vi Noise-Isolating Headset in Dark Silver, model no. 985-000121, for $83.99. With free shipping, that's the lowest total price we could find by $16. The built-in controls are compatible with iPhone, iPod, and BlackBerry. They feature a frequency response of 20Hz to 20kHz, in-line controls for music and phone functions, five sizes of ear cushions, protective case, and more.