The transceiver module is easy to use and completely encapsulated. It allows your target device to both send and receive the TTL data via Bluetooth technology without connecting a serial cable to your computer. The wireless Bluetooth RS232TIL transceiver module is suitable for mouse keyboard joystick; computers and peripherals; GPS receiver; instrument and industrial control. - Wireless Bluetooth RS232 TTL transceiver module - Allows your target device to both send and receive the TTL data via Bluetooth technology without connecting a serial cable to your computer - Easy to use and completely encapsulated - Chipset: CSR - Bluetooth V2.0 - Working voltage: 3.3V - Current: pairing 20~30mA connected 8mA - User defined Baud rate: 1200 2400 4800 9600 19200 38400 57600 and 115200 - Default serial port setting: 9600 N 8 1 - Password: 1234 - Suitable for: mouse keyboard joystick; computers and peripherals; GPS receiver; instrument and industrial control Datasheet: http://m2.img.dxcdn.com/CDDriver/sku.80711.pdf