For PS4 Slim Pro Game Controllers This product is for PS4 slim pro game controllers , it is convenient and practical. It is the game accessories that PS4 game players deserve. Dual Game Controller Charging Power through the USB port from either the PS4 console, PC or wall power source (Wall Adapter is not included), steady current, you can even turn on and use the system with the controller while it's on the charger. LED Indicator When the two handles are charged, there is an independent LED indicator. When the charging indicator icon turns green, it is finish. High Efficiency Fully charge can be completed within 2.5 hours when charging one controller. Fully charge to two controllers simultaneously within 3 hours , it provides an easy and quick way to charge and store your PS4 controllers securely. Save place and safe Specially designed for saving the place and the built-in battery of the PS4 controller with a protector chip begins to charge when the power is below 70%, if the controller is interrupted in charging process, then put it for charging again, and if its power is over 70% but below 100%, the charging will stop.