Hello, Here is a updated description, we are looking at building a little toy that plays music and uses a motor and has lights. We would like the music, lights and motor to be controlled via bluetooth through a free app. We would like to be able to turn the toy on and off via a app. We have some modules but not sure if they will work. We have the Redbear Mico controller (http://redbearlab.com/blendmicro/ ) and the sparkfun mp3 shield (https://learn.sparkfun.com/tutorials/mp3-player-shield-hookup). Redbear has a free app that we would like to use for testing until we can make one. We will need to have three buttons for the Mp3 player on the toy to turn the volume up and down, and play/pause. We need a on- off button for the toy as well. We are not committed to using the modules that we have, if you know of a better way, we are open to improvements.