the clerk removed it from a display case and , with great enthusiasm , switched languages and described it as `` full qwerty keyboard , tri-band operation on five continents , eighty megabyte built-in memory , high-speed data connectivity with egprs , wireless lan access , bluetooth wireless technology , ipv4 and ipv6 dual stack support , infrared , pop-port interface , symbian operating system version 7.0s , series 80 platform . ''