Rather satisfied with the product but disappointed Amazon

Little surprise at the reception: there is no indication that this is the 280Hz ... (unlike the Amazon home that seemed clear picture with "280Hz GYRO) The real references are PB-688 manufactured by Nano Second Technology Co (TAIWAN). It is perhaps not, but it gives the impression of having bought a full pot "made in china" ...
NB: This is my first powerball so I have no point of comparison.

Otherwise, it works well: launch by the small rope (somewhat lengthy) and taken fast enough hand (ten minute is required for it). It's very convenient not having to pile but at the moment I do not see how to enjoy the view because for it to work, it must be in motion and it was hands on it ... to see . Ditto to press the button to change the setting!
Working at the forearm, is exactly what I wanted.