Frayagresa via Amazon offers its Frayagresa Wireless Bluetooth Sport Headphones in Black for $19.99. Coupon code "9X3VTPBD" drops that to $12.99. Plus, Prime members receive free shipping. (Non-members can spend $35 to qualify for free shipping; otherwise, shipping adds $5.06.) That's $3 under our December mention, $7 off, and the lowest total price we could find. These headphones connect to up to two devices simultaneously and feature Bluetooth 4.0, an HD microphone with noise cancellation, and rechargeable battery with up to 10 hours of run-time per charge.