A spin-off from the millet subwoofer, this seemed to have special agreement, must cooperate with millet strip speakers to use, you want to burn the bluetooth module to mobile phone can also,
Next to five with the needle, but only the GND feet, understands this as spi download from the Internet, but before contact with CSR series chips, don't know this what to do, someone come in contact with the bluetooth module, and gives directions, or to identify the module of audio output pin, I directly with audio input,