plBeam is an application enabling exchange of data through infrared port with other palmtops, PCs and a wide range of machines using the IrOBEX standard.

EPOC system in ER5 version (Psion Series 5mx and later models) enables transmission using the IrOBEX standard. However, it is limited to exchange of single contacts and entries in Agenda only. plBeam breaks this barrier and allows for sending and receiving the whole data files and not only single records.

plBeam works perfectly with other systems using the IrOBEX standard, among others:
- Windows 2000 and Windows Me,
- Windows 95 and Windows 98 (sending files to these systems requires installing special software that is supplied with IrDa adapters),
- Nokia 9210
- PalmOS,
- WindowsCE and PocketPC (Pacemaker software has to be installed),
- CPen,
- WizCom,
- and many others.

Thanks to plBeam you do not have to install PsiWin software on your PC nor do you need a serial link cable anymore to be able to exchange data.