Arduino Uno + Xbee Shield help

Hey, I want to use 2 Arduino Uno boards and 2 Xbee shields. That is, one as a transmitter for a voice of certain frequency and the other as a reciever. Can Xbee shield be used in this manner, or are a better alternative way to make a Tx and Rx. I need arduino as my micro-controller.

Thanks in advance for anyone who helps.

That is, one as a transmitter for a voice of certain frequency and the other as a reciever

A voice of a certain frequency would be pretty monotonous and not convey much information. Voice data is in a range of frequencies from 20 to 20000 Hz.

How are you going to get this voice data to transmit? The built-in ADC is far too slow for capturing enough samples per second to maintain good quality sound.