what is the indoor & outdoor range for xbee wifi S6B?

The XBee Wi-Fi modules operate in the 2412-2472 MHz range.

Additional information on wifi range can be found in the XBee WIFI Product Manual at this link: http://ftp1.digi.com/support/documentation/90002180.pdf

You can find the most up-to-date version of this document at https://www.digi.com/resources/documentation/Digidocs/90002180/