newegg offers the Motorola SF600 Bluetooth Sport Headphones, model no. 89553N, for $49.99. This $20 mail-in rebate cuts it to $29.99. With free shipping, that's $35 under our December mention and the lowest total price we could find by $40. It works with most Bluetooth-enabled devices and features a water-repellant coating, built-in mic and controls, and more. Deal ends April 17.