Sennheiser Headphones: HD1 On-Ear Wireless Headphones $249.95, HD 579 Open Back Headphone $99.95 + Free Shipping via Amazon

Amazon
For those interested
Note, offer valid only for November 27, 2017 or while supplies last.

• Sennheiser HD 579 Open Back Headphone
  • $99.95 + Free Shipping

• Sennheiser HD1 On-Ear Wireless Headphones w Active Noise Cancellation
  • Black
  • Ivory
    • $249.95 + Free Shipping