Turtle Beach Ear Force PX4 (Certified Refurbished) This Certified Refurbished product is manufacturer refurbished, shows limited or no wear, and includes all original accessories plus a 90-day warranty Dolby Digital Surround Sound - Pinpoint the direction of every sound in all your games and movies in Dolby Digital Surround Sound Dual-Band Wi-Fi Wireless Technology - Interference-free, dual-band wireless means clearer chat and game audio Dual-Pairing Bluetooth Brings Calls & Gaming Together - Take advantage of Bluetooth to answer mobile phone calls without ever leaving the game Thickly padded, adjustable headband with breathable mesh ear cushions for marathon game sessions; Customizable Audio Advantage - With multiple EQ presets including bass and treble boost combinations, separate game and chat volume controls