Tanga offers the Logitech Ultimate Ears 600vi Noise-Isolating Headset in Dark Silver, model no. 985-000121, for $33.99 plus $4.99 for shipping. That's the lowest total price we could find by $16, although we saw them for $4 less in April. They feature an in-line microphone with controls, frequency response of 20Hz to 20kHz, five sizes of silicone tips, two Comply foam tips, and protective case.