Zentree provides a carefully designed docking surface, 3D Tree Array, which supports multiple gadgets of different sizes: iPhones, iPads, Androids, tablets, phablets, smartwatches, power banks or really any other USB device. The top is made of a soft silicone rubber, it protects your smartphones and tablets from scratches and slip-off. TheSmart IC, a core part of Zentree Charger Unit, auto-negotiates the best output charging current for your gadgets and ensures reliable and safe multi-device charging. It also prevents over-charging after battery’s 100% charged. Zentree is fully compatible to the latest USB charging standards, it provides 4 USB power ports with per-port charging current output of 2.4A max and total power output of 48W max. And especially, Zentree is made of selected eco-friendly materials, it is backed with a power-efficient and high-grade component circuitry to ensure the best product quality you can get.