This module has the familiar XBee package while sporting a PCB Antenna. You also get a built in microcontroller so you can also configure and program the modules using MicroPython as well as Digi's XCTU software. With a HCS08 CPU running at up to 50.33MHz, 15x digital I/O pins, and 4x 10-bit ADC pins these modules can even hold their own as a microcontroller.

Note: While these are backwards compatible in many ways with the XBee 1s and 2s, they are not completely compatible. Please see documentation for differences if you plan on adding these to an existing project.