The Resolve has a pleasantly balanced sound with satisfying bass for its size, but you need to buy 2 for stereo reproduction. Controls are easily managed even without the App. If you wish to also buy a charging cradle, they are all Black in colour, so you might wish to choose a Black Resolve for a colour match. If you need room-filling sound, consider buying the bigger Resolve Plus. But I prefer the better (and stereo) sound from my (now superseded) BOSE Soundlink III Bluetooth portable speaker which was cheaper and came with its own plug-pak Charger and capable of increased sound volume when required.