, Advanced Encryption Standard (AES) 128 bit encryption , Quiet-touch keys , Easy, reliable plug-and-play transceiver , Easy-access hot keys. 2 year average battery life , System requirements - requires a PC that meets the requirements for and has installed one of these operating systems: Windows 10 / 8 / 7; Mac OS X v10.4 – 10.7 , Item is UK layout ,