Blast Off Blast Off HC-S2036-02 Replacement Wireless PX21 Gaming Headset for PS 3; PS 4; Xbox 360; PC; Mac; Black HC-S2036-02 | Zoro
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Ancable 3-Pack 3-Feet 3.5mm Male to 2.5mm Male Replacement Cord for Xbox One Talback/Chat Cable, Turtle Beach X11 DX11 PX21 X12 PX3 XL1 Headset and Astro Gaming A40 A50 Headset - Walmart.com
Ear Force® PX21 Universal Gaming Headset from Turtle Beach® Takes PlayStation®3, XBOX 360® and PC Gaming to New Levels
Turtle Beach PX21 setup on Xbox 360 - YouTube
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Turtle Beach PS3 Video Gaming Headset Ear Force PX21 - NeweggBusiness
Turtle Beach Ear Force PX21 Gaming Headset for XBOX PS3 PC MAC (Refurbished) | Groupon