Re-imagine what a sound system looks like. Trash Amp pairs its signature speaker with a clean, unused Califia Farms bottle. The bottle speaker connects to your smartphone or tablet using Bluetooth technology, allowing you to stream music through all your favorite apps: Spotify, Pandora, YouTube, and more. An ample 10 hours of battery life plus a portable size make this speaker perfect for the park, the beach, camping or other outdoor activities. Each one is pre-assembled and ready to rock out, just press play to get the party started.