Good news! The PS4 controller's Back Button Attachment works on iOS. | iMore
Amazon.com: Sony DualShock 4 Back Button Attachment : Video Games
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Cronus Zen Back Button Controller Attachment (PS4)
Image] Quick Pro and Con of PS4 back button attachment. It makes the DS4 feel weighty and premium. Easiest Mapping. I wish the buttons were slimmer because I had to adjust my