The OontZ Ultra-Portable Wireless Bluetooth Speaker by Cambridge SoundWorks
The OontZ Ultra-Portable has remarkably good sound for such a small device. It can be difficult to use. Music has a tendency to skip and crackle, which can be addressed by trying various volume settings on the OontZ and your Bluetooth device, an issue not addressed in the manual. You can use it while it's recharging, but once it's fully charged it will inform you of this by ending the connection with your device, at which point you have to unplug it and reconnect, which is another issue not addressed in the