Targus PA870U V2 IR Foldable Keyboard for Palm PalmOne Zire 21 71, Tungsten T T2 T3 E C, i705, VX, m500 m505 m515, m100 m105 m125 m130 PDA Targus black foldable keyboard model: PA870U V2.0 Wireless keyboard brings freedom and converience 210 rotating infrared sensor arm; Landscape feature on PDAs with screenflipping software Powered by two (2) CR2032 lithium batteries (included) 8-way navigation button to simulate mouse movement