Sunnyvalleytek via Amazon offers the TaoTronics Bluetooth Wireless In-Ear Sport Headphones in Black, White, or Black/Green, model no. TT-BH06, for $39.99. Coupon code "6I6RYEEF" cuts it to $17.99. With free shipping, that's $78 off list and the lowest total price we could find. These noise-canceling headphones feature a sweat-proof design, interchangeable earbuds and earhooks, Bluetooth 4.0, microphone, and up to 5 hours of playtime and 175 hours of standby time with a single charge.