Newegg offers the Sennheiser HD 202-II Professional Headphones for $29.99. Coupon code "EMCWPWP87" cuts that to $17.99. With free shipping, that's the lowest total price we could find by $4. These closed-back on-ear headphones feature a frequency response of 18Hz to 18,000Hz, removable ear cups, and a belt clip for adjustable cord length.

Also available are the Sennheiser HD 205-II DJ Headphones for $49.99. Coupon code "EMCWPWP88" cuts that to $29.99. With free shipping, that's the lowest total price we could find by $18. These on-ear closed-back headphones feature a frequency response of 14Hz to 20,000Hz, rotatable earcups, and noise-suppression. Both deals end October 13.