The Bluetune Pop is a portable speaker with a built-in rechargeable lithium battery. This little device has excellent sound dynamics thanks to its pop-in/out mechanics and packs 4 watts of power. With the Bluetooth function, you can play your favorite music directly from your smartphone, tablet, notebook etc without the hassle of cables. Non-Bluetooth enabled devices can be connected conveniently via the supplied USB connecting 2-in-1 audio cable. Thus the Bluetune Pop is the ideal companion for traveling.