Sunvalleytek via Amazon offers Prime members the TaoTronics Wireless Sport Bluetooth Headphones with Microphone, model no. TT-BH08, for $24.99 with free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $6.14.) That's $55 off list and the lowest total price we could find. Features include a sweat-proof design, interchangeable earbuds, Bluetooth 4.0, microphone, and up to 7 hours of playtime with a single charge.