3Pcs HC-05 Wireless Bluetooth Serial Transceiver Module For Arduino

3Pcs HC-05 Wireless Bluetooth Serial Transceiver Module For ArduinoDescription:HC-05 could be setted to master or slave by user. HC-06 can only be master or slave which could be customized.
Wiring(only need 4 wires): RX to RXD / TX to TXD / GND to GND / 3.6V to 6V
Power: 3.3V
Note: This module does not suitable for IOS system.Package included:3 x HC-05 wireless bluetooth serial transceiver module