It is embedded within the Bluetooth communication protocol， no need to install the driver， can be used in Windows systems， you can also use DOS， Linux and other non-graphical operating system
CSR Bluetooth chip Bluetooth 2.1 standard
Enhanced BER error rate performance and automatic frequency hopping technology can ensure efficient and secure communication， and has a stronger anti-jamming capability to ensure the stability and reliability of the communication
User can set total 12 different baud rates (default is 9600， n， 8， 1) from 1200bps to 1382400bps by using the AT command
Can also set more personalized Bluetooth name for the device
Support the Bluetooth serial port profiles (SPP)， and can communicate and connect with devices equipped with a Bluetooth， such as desktop computers， handheld Bluetooth PDA and Bluetooth GPS device supports Bluetooth SPP service
Transmitting power complies with the Bluetooth Class2 standard， built-in high sensitive PCB printed antenna， stable communication distance of up to 15m
Equipped with a RESET button that can remove the saved paired device information， and repaired with the new Bluetooth device
Need power supply through mini USB port
Executive standard: Bluetooth SIG， v2.1 + EDR
Bluetooth protocol: The Bluetooth serial port profile (the SPP)
Interface: RS232
Communication speed: 1200， 2400， 4800， 9600， 19200， 38400， 57600， 115200， 230400， 460800， 921600， 1382400bps Modulation : 2.4G ISM direct sequence frequency hopping (FHSS)
Communication distance: Open space of 15 meters， Class 2 level
Transmit power: 4dBm
Receiving sensitivity: -79dBm
Sleep current operating current: 40mA/1.6mA (typical value)
Operating temperature / storage temperature : -10 - 50 / -20 - 80 degree centigrade