Bluedio via Amazon offers the Bluedio US Wireless Bluetooth Satellite Speaker System with Microphone for $59.99. Coupon code "G4L6VCNC" cuts it to $29.99. With free shipping, that's tied with our mention from a month ago and around $55 less than what most third-party sellers are charging. It features a 2.1 sound track, 3D sound, passive radiator, and a frequency response of 50Hz to 20KHz. Deal ends January 31.