Ventisonic&reg; Wireless Bluetooth RF Transceiver Module serial RS232 HC-06 for Arduino TTL 100% Brand New Ventisonic Wireless Bluetooth RF Transceiver Module serial RS232 HC-06. Support Master and Slave mode, modify by AT commander. This Module can easily transfer the UART data through the wireless Bluetooth. Without complex PCB layout or deep knowledge in the Bluetooth software stack. You can combine this bluetooth module with your system Package Included: 1 X Bluetooth transceiver module