Hardware features
 Typical -80dBm sensitivity
 Up to +4dBm RF transmit power
 Low Power 1.8V Operation ,1.8 to 3.6V I/O
 PIO control
 UART interface with programmable baud rate
 With integrated antenna
 With edge connector

Software features
 Default Baud rate: 38400, Data bits:8, Stop bit:1,Parity:No parity, Data control: has. Supported baud rate: 9600,19200,38400,57600,115200,230400,460800.
 Given a rising pulse in PIO0, device will be disconnected.
 Status instruction port PIO1: low-disconnected, high-connected;
 PIO10 and PIO11 can be connected to red and blue led separately. When master and slave are paired, red and blue led blinks 1time/2s in interval, while disconnected only blue led blinks 2times/s.
 Auto-connect to the last device on power as default.
 Permit pairing device to connect as default.
 Auto-pairing PINCODE:”0000” as default
 Auto-reconnect in 30 min when disconnected as a result of beyond the range of connection.