World Wide Stereo offers the BOOM Swap Convertible On-Ear Headphones with Mic in Green/Orange, model no. SWAPGR, White/Gray, model no. SWAPWH, or Black/Blue, model no. SWAPBK, from $89.30. Coupon code "DNEWSWP" cuts them to $49.99. With free shipping, that's the lowest total price we could find by $50. They feature three parts that can be swapped to create eight different styles, water resistance, and they include a three-button MFI Apple certified control. Coupon expires June 22.