GooLoo via Amazon offers the Gooloo Sport Bluetooth 4.1 In-Ear Smart Magnetic Wireless Headphones for $29.98. Coupon code "CMXT5PZK" cuts them to $21.89. Plus, Prime members receive free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $6.14.) That's $38 off and the lowest total price we could find. Connecting these magnetic headphones together will stop playing music or disconnect a call, while separating them will answer a call.