Using this Mini External USB Stereo Speaker is super easy. First, find a USB port on your device, like a Raspberry Pi or other computer, and plug the speaker into it. You'll start hearing audio right away. If you're using it with a Raspberry Pi, refer to our guide to set it as the default output. When you're done using it, simply unplug it from the USB port. As for maintenance, keep it away from water and dust. Wipe it gently with a dry cloth if it gets dirty. There's no need to charge it separately as it gets power from the USB connection. Enjoy your portable audio experience!