- Brand: SONY PlayStation4 - Product Name: Back Button Attachment [CUHJ-15017] - Compatible with: PS4 DUALSHOCK 4 Thank you for viewing. I used this a few times and then stored it. While it doesn't show much wear, please consider that it is a used item and make your decision based on the photos. By attaching this to the back of your DUALSHOCK 4, you can assign various buttons and directional keys to each of the two buttons. It connects and is ready to use immediately, and the product itself does not require charging.