The receiver is a very slick and compact design, well layed out 4-layer PCB. The receiver is 36 x 21 x 10 mm in size, and only 0.25 oz.
Thanks to the simplicity of SoC chips today, the Texas Instruments CC2510 is the main CPU of the receiver, and the Texas Instruments CC2591 is piggy-backed onto the CC2510 for extended 2.4Ghz range.
So the entire Rx design is really just three main components along with a bunch of passive parts and the usual 3.3v regulator for the input supply. The CC2510 is a System-On-Chip Transceiver module, with an enhanced 8051 core along with 32kB flash.
1) Texas Instruments CC2510 - 2.4 GHz Radio Transceiver, 8051 MCU, and 32 KB Memory
2) Texas Instruments CC2591 - 2.4-GHzRF Front End
3) Clock Module - 26.000 Mhz clock module for CPU