Designed for switch and switch lite, fit all hand sizes and provide players with comfortable handling to avoid carpal tunnel.(NOTE: The interface is a little loose in order to compatible with switch, but it has no effect on our use) 4-in-1 - The product work as switch grip, cooling, charger and stand. Comfort padded hand grips. Meanwhile, it can work as a foldable Kickstand. Easy to use, Light-weight to carry. This case for Nintendo Switch and switch lite is easy to get in and off. Easy to carry around and give the best protection on the go. Ergonomics improves game play duration. 2 Embedded Fans System Dissipate the Heat and Keep your switch or switch Lite Stay Cool Status During the Play. Built-in 6000mah rechargeable battery. Applicable to the Switch host when the handle is pulled to the maximum. position, and applied to the Mini host when the handle is retracted to the minimum position. 3. Press the switch button to start the fan, and press the second button to charge the host.