Parallax

2.4 GHz XBee-PRO Transceiver with a Wire Antenna Data Rate: RF 250 Kbps, Serial up to 1 Mbps Indoor/Urban Range: 300 ft (90 m); Outdoor/LOS Range: 2 miles (3200 m) Digital I/O Lines: 15; A-to-D Conversion: (4) 10-bit Voltage requirements: 2.7 to 3.6 VDC Communication: UART, SPI