The Denver MC-5010BT is a mini system with Bluetooth. You can stream music from your smartphone or tablet to the mini system, or you can put it on a CD. To save the batteries in your phone or tablet, you can also connect an audio cable to the AUX input. Don't you have an extensive musical library of your own? Switch on the FM radio and be surprised. The mini system has an integrated alarm, so you can be woken up by the radio, a CD, or the buzzer.