Daily Sale offers the Logitech Ultimate Ears 600vi Noise-Isolating Headset in Dark Silver, model no. 985-000121, for $22 with free shipping. That's tied with our mention from two weeks as the best price we've seen. (It's also a current price low by $15.) They feature an in-line microphone with controls, frequency response of 20Hz to 20kHz, five sizes of silicone tips, two Comply foam tips, and include a protective case.
Note: The countdown timer on the product page resets daily and does not reflect an actual expiration time.