Newegg has these refurbished Sony Supra-Aural Extra Bass Headphones for $29.99. Redeem this $20 mail-in rebate
and the price drops to $9.99. They feature a 5Hz to 22KHz frequency response and 3.5mm gold-plated connector 3.9-foot cord. They sell for $59.95 at Amazon
. Shipping is $1.99.