ITEM NAME:HC-06 Wireless Bluetooth RF Transceiver Module serial RS232 TTL for Arduino J1G5 HC-06 Wireless Bluetooth RF Transceiver Module serial RS232 TTL for Arduino J1G5 Adopted CSR mainstream bluetooth chip, bluetooth standard V2.0 protocol standard Modules power supply voltage: 3.3 V to 3.6 V The default parameters: baud rate9600, pairing code 1234,working mode : slave The core module size: 27 mm x 13 mm x 2 mm Communication distance: 10M under the.1x HC-06 30ft Wireless Bluetooth RF Transceiver Module. Adopted CSR mainstream bluetooth chip, bluetooth standard V2.0 protocol standard. The core module size: 27 mm x 13 mm x 2 mm.