We are planning to provide a desktop version of the app, but for now please use an iOS or Android device. One workaround is that you can use iTunes airplay to play music from your laptop.
For PCs, you can stream from Windows Media Player to your Cobblestone via a UPnP or DLNA certified controller, such as Play To. Just make sure your device and Cobblestone are all on the same wifi network, and then follow these steps:
1. Open Media Player on Windows 7
2. In the play list, Click Play To and select the Cobblestone device
1. Right click on the song and Click Play To
2. Music starts streaming.
If the speaker / device is not visible on the Windows 7 Media Player, go to Stream > More streaming options, and make sure the speaker is in "Allowed" state.