Specification: Item Type: Back Button Attachment_x000D_Material: ABS_x000D_Color: Black_x000D_Input: 3.2 V / 100mA_x000D_Plug Type: Extension Interface + headphone Interface_x000D_Applicable Device: For PS4 controller_x000D_Please use a 3 - or 4-pole headphone plug to ensure that your headphone can communicate smoothly_x000D_This "back button accessory" only provides a button mapping capability that can map 16 different key combinations and cannot be programmed or for Turbo set.It only works in terms of ease of use and helping to release the fingers Features: 1Special designed for Sony PS4 controller, can map 16 different key combinations. 2Improve operational flexibility and enhance your gaming experience with a 3.5mm audio interface. 3Please use a 3 or 4 pole headphone plug to ensure that your headphone can communicate smoothly. 4Extension interface + headphone interface, 3.2V/100mA input, wonderful accessory. 5Made of high quality ABS materials, strong and durable, having long service life. PackageList: 1 x Back Button Attachment 1 x Manual