Using dual-beam infrared to communicate with your PDA wirelessly, the keyboard no longer has to be attached to your PDA. Since the operation of the keyboard is based on the universal infrared technology, the keyboard is compatible with many Pocket PC and Palm devices available in the market. It can also be compatible with future PDA devices through driver updates. The Universal IR Wireless PDA Keyboard may be the last PDA keyboard you need to buy.This keyboard is compatible with the following systems: HP iPAQ 3600/3700/ 3800/3900/5400 series Pocket PCs;Toshiba e310/e570/e740 and 2032SP Series Pocket PCs;Dell Axim X5 Series Pocket PCs;Palm III, IIIx, IIIe, IIIc, V, Vx, VII, VIIx m100, m105, m125, m130, m500, m505, m515, i705, and Zire Series handhelds;Sony CLIE S/N/T/SL/SJ/NR/series handhelds;Casio E-200 Pocket PC;Mitac 338 Pocket PC;O2 XDA Pocket PC;Asus Zayo A600 Pocket PC;Audiovox 2032SP Pocket PC;Handspring Visor/Deluxe/Edge/Prism/ Platinum/Neo/Pro, and Treo Series handhelds;IBM WorkPad c3/c50x Series.For a complete compatibility list please refer to the original manufacturer's web site.