the device itself is super. But Amazon's storage dilemma. 1. the unit was defective and lacked part, returned. the 2nd unit was missing the instruction manual and it was broken again what. When you call I said that I suspect that defective goods would re-shelved. What you cross then bitteschön defect if the goods back to the next customer (or even to myself, already experienced with inline skates here) is sent. If I order NEUWARE, I expect commodity in an unopened box !!!! Today, the 3rd unit came. I hope it does what it says, otherwise I exploding soon!
