Amazon offers the Bludio Turbine 3 Extra Bass Bluetooth Headphones in Black, Gold, Red, for $39.99. Coupon code "7JU9XPET" cuts the price to $29.99. With free shipping, that's tied with our mention from last February and the lowest price we could find by $20. Features include 57mm drivers, a 15Hz to 25kHz frequency response, and range of up to 33 feet. Deal ends March 31.