VM Innovations discounts selected headphones via the coupon codes listed below. Plus, all orders qualify for free shipping. That puts each at the lowest total price we could find by at least $4. The deals, with prices after the respective coupons:

• VM Audio SRHP6 On-Ear DJ Headphones in Red/Black for $9.49 via "HDDJ1"
• Sennheiser adidas MX 680 Sports Earphones (pictured) for $19.99 via "HDSP1"
• Sennheiser HD428 DJ Stereo Headphones for $30.99 via "HDSQ1"