XBOX 360 (XBOX360) Controller Keyboard / Chatpad by Z-Joy 47 keys designed, with windows Live Messenger function for instant message With an audio interface, it can be used with any adopted standard 2.5mm earphones, and also compatible with XBOX360 original earphone Compatible with both wired and wireless controllers Material: ABS / Working voltage: 3-3.3V , Working current: 0.25-2MA Made by Z-Joy