Lenovo offers its Lenovo P550 Headset, model no. 55Y2065, for $19.99. Coupon code "USP1D12065" cuts it to $6.99. With free shipping, that's the lowest total price we could find by $5, although we saw it for $1 less in August. Sales tax is added where applicable. Features include 20Hz to 10kHz frequency response, noise-canceling microphone, and more. Coupon expires December 5.