Mobile City Online via Amazon offers the RevJams Active Pro Bluetooth Wireless Sport Earbuds in Black, model no. REV400, for $29.99. Coupon code "3ACOJXFO" cuts it to $24.99. Plus, Prime members bag free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $6.10.) That's $105 off list and the lowest total price we could find. They feature Bluetooth 4.1, an inline remote and microphone, water resistance, and up to six hours of playtime. Deal ends April 10.