Instruct: Classify a given review into positive or negative sentiment.
Query: poor performance

I mounted my tv on the wall and decided to put all of my other stuff in the closet about 3 feet away from the tv. This thing seemed to be exactly what I needed to make it all work so I bought it and anxiously waited it's arrival. I charged it correctly and hooked everything up and it worked intermittent at best. Sadly, it just does not do what it says it can do. You have to have a direct line of sight. Unless my walls are made out of some anti-rf signal super material that they had in 1961 when it was built. Wouldn't buy it again. I should've just bought a shelf. It's been awhile and I still don't have this problem solved.