. PGYTECH Protector for DJI Smart Controller provides full protection for the control sticks the control display & buttons during storage & transportation. The Controller Protector of TPU injection molding utilizes the existing structural features of the remote control to stay in place with an anti-off buckle structure which makes it more portable & saves the unwanted inconvenience caused by repeated installation & de-installation of control sticks. Lifetime warranty-Provide you with the best satisfaction. No Extra Parts Required The Controller Protector of TPU injection molding utilizes the existing structural features of the remote control to stay in place with an anti-off buckle structure. What's in the box?. 1 x Protector for DJI Smart controller 1 x User Guide..