VM Innovations discounts a selection of refurbished Sennheiser headphones, as listed below. The deals, all with free shipping and comparisons versus buying new:

• Refurb Sennheiser MX 680 adidas Sports Earphones for $9.99 via "5P9SN" (pictured, $12 low)
• refurb Sennheiser PMX 685i adidas Sports Headphones for $28.99 via "MRE44X" ($17 low)
• refurb Sennheiser HD 335s On-Ear Headphones for Smartphones for $28.99 via "QWW3T" ($58 low)
• refurb Sennheiser RS 180 Digital Wireless Headphones for $159.99 via "3QYS6J" ($40 low)