Patent ID: 8324492

Claim:
A system of musically interacting devices, comprising: a first device having a first identification code, a first wireless communication interface and a first audio player; and a second device having a second identification code, a second wireless communication interface and a second audio player, wherein the first device and the second device are configured to participate in an interaction sequence in which: the first device wirelessly communicates using the first wireless communication interface and the second device wirelessly communicates using the second wireless communication interface, a musical composition is selected based on both the first identification code and the second identification code, and the first device and the second device cooperatively play the musical composition, with each of the first device and the second device playing a different part of the musical composition, wherein at least one device from among the first device and the second device is disposed within a housing that has an overall outward appearance of a toy character, and wherein said at least one device has attached to it a removable module that: (1) stores information causing a modification of the identification code of said at least one device, and (2) has an outward appearance indicating said modification.