Due to the wild success of Sennheiser’s upgrade program, the high-end German headphone manufacturer has relaunched the trade-in program with several enhancements. The cash back offer now includes wired AND wireless headphones of all sizes:

• Audiophile headphones
• Wireless headphones
• Hi-Fi headphones
• Portable headphones
• Sport headphones
• Noise cancelling headphones

Yep. You can even trade earbuds for $50 bucks off of the mighty HD 650.

Even better, the program has been extended to the end of September 2008 to include summer travel and back-to-school shopping.

From now through September 30, 2008, upgrade to a high quality pair of Sennheiser’s and they will give you cash just for unloading the old ones…even if they are broken, crusty, damaged or an obscure brand. Best of all, you’re likely to find a better type of headphone for your needs than what a stock earbud can provide: sport headphones, in-ear headphones, noise cancelling headphones and more.
Here’s how it works:

Gather up your old headphones, which can be new, old, broken, used, any brand – they don’t care!
Upgrade to a pair of Sennheiser’s (see link below for eligible models)
Mail the old headphones E-Z trade form and get $$ for your trade. It’s really that easy.

Seriously… I might have to take advantage of this myself. Find out more at Sennheiser USA.