With its tall cylindrical body, the O2 Bluetooth speaker is modelled on an African drum and thus refers to the universal power of music. The device is small, lightweight and splashproof, so equally suitable for indoor and outdoor use. The integrated carrying strap is a handy feature. Its very long battery life also makes the speaker a reliable companion for on-the-go. Last but not least, the O2 scores highly with its impeccable workmanship.