For someone like me who is a jazz musician, and more recently as a book author travels a lot and therefore has to be constantly online to Power Bank "ninetec" a valuable aid. Their high load capacity and diverse usability allow independence over longer periods and ensure security, which allows an undisturbed concentration on the daily operations. In addition, the Power Bank can be carried along easily because of their sleek size, this is visually presentable and therefore generally positive apart from many devices, which are often perceived as a nuisance. For me "ninetec" is indispensable.
