Good news: Nice to have been sent the version 2 of the DFRobot Sound Sensor. The bad news is that the cables and connectors supplied with V2 will not work with older DF modules directly. The Vcc and Gnd pins have been swapped in the version 2 Sound Sensor boards. Poor silk screening, layout does not clearly indicate which pins are what. You will have to go to the DFROBOT site for that.