ATtiny814 with 868MHz CC1101 Radio from LeoNerd's Store on Tindie
CC1111EMK868-915 - Texas Instruments - Evaluation Kit, CC1111 USB Dongle, USB and RF Applications
Radioland Ti Cc1101 Low Power Rf Transceiver 433mhz/868mhz/915mhz Wireless Module - Buy Long Range Sub 1g Cc1101 Module,Sub 1g Cc1101 868mhz Module For Wireless Alarm And Security Systems,Cc1101 915mhz Module For Wireless