Battery Powered: No Separate power is required to run the speaker, you can just connect the speaker to an Aux port of Computer, laptop, phone or a tablet and enjoy the performance. In built Aux cable: Aux cable is a part of the speaker and one needs not look for any special accessory to play the speaker. The back lid needs to be removed to find the inbuilt cable. Sound clarity: The sound output very powerful and pure and also depends on the sound source. It not even amplifies the sound but also make the sound more melodious and audible. Portable: Cubix can be easily accommodated in the palm of your hand. It can be carried in your pocket, purse or your laptop bag easily. Appearance: it comes with Colourful silicon casings in 3 variants, Blue, Orange and yellow. The casing not only provide robustness to the speaker but also gives add a style statement to the speaker as a whole Play time: It contains a special 18650 lithium ion cell that is additionally protected through the PCB at both ends. The play time of the speaker in a single charge is more than 5 hrs at full volume Compliance: This device can work with Desktops, Laptops, Mobiles, tablets, Mp3 and Mp4 Players, etc.