This Speech Synthesizer Bee Module is compatible with the Xbee pin. It can be easily plugged into the Arduino sensor and Xbee expansion board. Your robot will be able to issue a real voice without pre-recorded. when connected with this board.
Working Voltage: 3.3-5V
Interface Type: TTL serial port, the default baud rate of 9600
3.5 headphone jack
Compatible with Xbee socket