Back it up, pack it in. The PS4 controller is getting a new back button peripheral. Releasing on January 23, the $30 device will add two programmable buttons to the rear of the DualShock 4. This may ...

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Sony’s brilliant new Back Button Attachment adds two handy rear buttons to any standard PlayStation 4 controller. It’s a must-have for hardcore gamers — and it works great with iPhone and iPad. Not so ...