Folks over at Polygon have discovered a new Sony Interactive Entertainment patent that showcases a controller design featuring two programmable buttons built into the back of the device.
The patent, which was approved on December 26th by the World Intellectual Property Organization (WIPO), differs from the patent we saw in November and its design differs from the newly-unveiled back button attachment for the DualShock 4. According to a translation of the document by Polygon, these two new buttons can be programmed to perform functions of other buttons on the controller.

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