This Lava Speaker is a brilliant idea. You can watch the lava while listening to relaxing music, or you can dance around to some fun lights. Both the bluetooth and aux cord work well and get good sound quality. You control the volume through your device, which might seem counter intuitive, but it's easy to do. The lava take a good half hour or so to heat up, but you can leave it on for quite a while without worrying. Overall, this speaker is a great decoration, speaker, and way to relax.