The housing is fixed and inside no noise at movement can be perceived, so I attest to the processing of a very clear "Good". Bad I find the LC display that can be read only in an extremely narrow angle. Each 5 Euro calculator can do better. The manufacturer should make improvements. Likewise, a visual or haptic clear labeling of the "Activate" button would make sense, because you, just looking in the dark for a while until you have found the button.
For power, there is nothing negative to say. The stated capacity of 60 watt hours is correct and simultaneous charging of iPad and iPhone works well and very quickly. Heating in the discharge operation I could not tell.
When charging, the charging electronics shows flexible: Of course, a reasonably regulated to 5V input voltage is required. When required amperage This shows a very high tolerance and from a few hundred to several mAh Ah input current is converted everything = awesome.
Total: Performance is great, handling should the button and the LCD screen will be changed. Otherwise may be a rubberized housing well as a super smooth things so much slip out of the paw) buy recommendation on my part.
