Groupon $50 online Credit for Maximo.com for iMetal Headphones $15

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If you have a Discover Card. Login to Discovercard.com, click shop discover retailers and select "G" and Groupon for an additional 15% cashback on your purchase.

The IP-HS2 is selling for $49.99 with free shipping(Review). You can see more of Maximo's products.