TELSEY is a software developer for Windows.
It is reported that the following Windows processes are part of Telsey 802.11g Wireless USB2.0 Adapter:
If you want to remove Telsey 802.11g Wireless USB2.0 Adapter from your computer, just go to Start > Control Panel > Add/Remove programs and select Telsey 802.11g Wireless USB2.0 Adapter from the list of programs.