Meritline offers the refurbished Logitech Ultimate Ears 350vi Noise-Isolating Headset, model no. 985-000304, for $26.99. Coupon code "MLCKW15RNL1" cuts it to $19.99. With free shipping, that's tied with last month's mention and the lowest total price we could find for a refurb by $2. This headset includes a microphone and comes with a protective case. Coupon expires after 100 uses.

Of note, no warranty information is provided, but a 30-day return policy applies.