As one of its daily deals, Musician's Friend offers the Alesis iO Hub 2-Channel USB Audio Interface for $49 with free shipping. That's the lowest total price we could find by $50. This device allows you to connect to your computer or tablet for recording and mixing vocals, guitars, and other sources. It features two XLR+ 1/4" combo inputs, two 1/4" outputs, and USB. Deal ends today.