In summary, Digi's XBee is a M2M RF module. XBee is offered in multiple frequencies for Worldwide deployment. XBee modules leverage multiple types of wireless protocols which are suitable for all sorts of different network architectures. They are available in two hardware footprints: through-hole and surface-mount. XBee can be easily swapped out to different modules if the user needs different frequencies. Digi’s XBee modules are a complete solution – hardware, software, and certifications. Digi has already done the work, so the designer does not have to.