The Leitz Office Multi-Charger support allows not to try making available its charger or when a battery low occurs. The base load is stable and weighted, the 3 shapes tip correspond to the most common devices: An iphone tip, tip 1 tablet and smartphone tip 1 / AFN. The latter is the most used at home, which can cause congestion, but there way to add a usb cable if necessary (4 ports under the hood)