Enter the unimaginatively named Back Button Attachment, aimed at giving your six year old DualShock 4 a few new tricks. But just a few. The accessory is a $30 addition to your existing controller, which circles impulse buy territory. But what does this peripheral peripheral do? It plugs into the DualShock 4 through the 3.5mm headphone port there a headphone port on the back button attachment, so itll still work with headsets and PSVR and works straight off the bat. The integrated OLED screen...

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