VM Innovations discounts a selection of Sennheiser earbuds and headphones via individual coupon codes, as listed below. With free shipping, each is at the lowest total price we could find by at least $4 and as much as $11. The deals:

• Sennheiser CX200 Twist-to-Fit Earbuds for $12.95 via "7TRNE7Q" (low by $5)
• Sennheiser MX 680 Adidas Sport Earbuds for $19.99 via "K5AS5CEX" (low by $4)
• Sennheiser HD229 On-Ear Headphones (pictured) for $29.50 via "C377KM" (low by $11)
• Sennheiser HD419 Over-Ear Headphones in for $30.99 via "XAH9M" (low by $9)