VM Innovations discounts a selection of factory-refurbished Sennheiser headphones and headsets via the coupon codes listed below. (The coupons may apply automatically.) Plus, all items bag free shipping. A 90-day Sennheiser warranty applies to each item. The deals, with prices after coupon, compared to new units unless noted:

• Refurb Sennheiser HD201 Professional Headphones for $12.99 via "X8WQ8C" (pictured, low by $7)
• refurb Sennheiser MX680 In-Ear Headphones for $14.99 via "YFCAF" (low by $8)
• refurb Sennhesier VMX Office Bluetooth Headset for $19.99 via "7J9JSFE" (low by $180)
• refurb Sennheiser BW900 Bluetooth Headset for $24.99 via "K74MWM" ($483 under a refurb)
• refurb Sennheiser HD428 Headphones for $27.99 via "J69QN84R" (low by $72)
• refurb Sennheiser OCX 685i In-Ear Headphones for $34.99 via "GEYPE" (low by $12)
• refurb Sennheiser RS120 Wireless Headphones System for $47.99 via "QSYXWTJA" (low by $40)
• refurb Sennheiser HD280 Pro DJ Headphones for $59.99 via "8Y7E7XE" (low by $40)