The company 's ZigBee offerings are XBee and XBee - PRO ZigBee RF modules , XBee ZigBee gateway , ConnectPort LTS 8/16/32 , ConnectCore 6 Single Board Computer , ConnectPort X2 , XBee - Pro ZigBee Wall Router , XBee sensors , XBee - Pro ZigBee adapters , and XStick USB adapters .