Feature:

Module: HC-06 slave
Interface: VCC, GND, TXD, RXD(reserve LED status output pin, and MCU can judge the Bluetooth connection state through it)
3.3V LDO
Input voltage: 3.6V - 6V(never over 7V)
Input current: 30mA(unpaired) 10mA(paired)
Interface level: 3.3V(you can directly connect a variety of SCM 51, AVR, PIC, ARM, MSP430, etc. 5V microcontroller can also be directly connected without MAX232)
Effective distance: 10M(open area)
Communication format: 8 data bits / 1 stop bit / without parity
You can set the baud rate, name and pair password by AT commands when there is no bluetooth connection
This module is slave, it can be paired with computer, bluetooth master, mobile phone, PDA, PSP and so on
Size: 3.57 x 1.52cm