【How it enable fast charging?】 The CTYBB Qi Car Wireless Charger Mount is Qi-certified and supports fast charging. Built-in new responsive smart chip which can intelligently identify wireless fast charging device and selects optimal charging power performances among 5W, 7.5W and 10W. Note: Fast charging requires a QC3.0 car charge adapter, and we take this into account, so we will configure QC 3.0 fast car charge directly for you. 【One-button Auto Clamping Technology】The CTYBB Qi Wireless Car Charger is built-in advanced sensor which allows one hand operation. Just place your phone in the phone holder and the wireless charger mount automatic clamping and keep the phone begins charging. One-button to release is also easy. One touch of the buttons on the mount's sides releases the phone without unplug the device. PS: Five minutes after the car is turned off, it can also be operated with one button without power. 【Dose it enable charging with phone case?】YES! CTYBB Wireless Charger Car Mount can work for phone with phone cases. Suitable for most of the phone case but not include metal attachments, and we recommend ≤0.16 in thickness for better charging result. Clamp max-expands 0.48in to adapt to various Qi-enable devices size from 4.0 to 6.5in