There are 70 different sellers on Amazon selling a version of this box, If you buy from the wrong seller you get GARBAGE. I own one of these and use it daily. If you buy a cheap box you get a cheap box. If you spend the $150 for a well setup device you get a Well set up Device. Mine works GREAT. Not sure who your buying from but it wasnt us.
Buy form newlife http://www.amazon.com/gp/node/index.html?ie=UTF8&marketplaceID=ATVPDKIKX0DER&me=A3KU0EY5F9CHKE&merchant=A3KU0EY5F9CHKE&redirect=true