VM Innovations discounts a selection of Sennheiser headphones via coupons, as listed below. With free shipping, each is at the lowest total price we could find by at least $8 and as much as $19. The deals:

• Sennheiser HD428 Closed Circumaural Hi-Fi Headphones (pictured) for $29.99 via "SQ48S"
• Sennheiser Omx 680i Adidas Sports Earphones for $29.99 via "MX29A"
• Sennheiser CX 680 Adidas Sports In-Ear Earphones Headphones for $39.99 via "CX839"
• Sennheiser HD 439 Around-The-Ear Portable Headphones for $59.99 via "ATP39"
• Sennheiser HD 518 Audiophile DJ Headphones for $79.99 via "A58DJ"