Geeetech BTBee Bluetooth to serial port module:BluetoothBee compatible with existig Xbee socket This Serial Bluetooth module is an easy to use module. It is compatible with the existing Xbee socket. It is designed for transparent wireless serial connection setup. Serial port Bluetooth module is fully qualified Bluetooth V2.0+EDR(Enhanced Data Rate) 3Mbps Modulation with complete 2.4GHz radio transceiver and baseband. It uses CSR Bluecore 04-External single chip Bluetooth system with CMOS technology and AFH(Adaptive Frequency Hopping Feature).