As one of its daily deals, PricePlunge offers the Logitech H230 ClearChat Headset with Mic in Black, model no. 981-000018, for $7.49 plus $2.99 for shipping. That's the lowest total price we could find by $6. (For further comparison, we saw a refurbished unit for $0 after rebate two weeks ago; this one is new.) They feature a frequency response of 20Hz to 20kHz, 3.5mm plug, and four interchangeable color plates. Deal ends today.