The HC06 Bluetooth module works with any USB Bluetooth adapter
( I easily obtained the connection with my Sony Xperia Z1 smartphone and the free "BlueToothLinkFree" application ... )
The antenna is engraved on the printed circuit.
Bluetooth version : V2.0 + EDR ( Enhanced Data Rate )
Default transmission speed : 9600.8, 1, n.
Signal coverage : approx. 10 meters
Operating voltage : +3.3 V maximum! ( power supply and transfer data )
Consumption : 150mA at 3.3 V
- 1 x green LED indicating the operating mode:
- without Bluetooth connection the LED flashes
- with bluetooth connection the LED is on steady
- 1 x 4-pin male connector ( supplied already soldered ): VCC / GND / TxD / RxD
Compatible with a master Bluetooth module, a slave module or a master-slave module.
Dimensions : 15.5 x 39.8mm
Weight : 3gr .
No protection circuit, so take precautions before connecting the power ...
→ I bought this module here in December 2015 for 2.60 € (free shipping).