You can connect your mobile phone or laptop to Bluetooth a listen to your favorite music. It has an AUX Input to connect your tablet to the corresponding cable (not included). It has an external antenna so you can have a stable and strong signal wherever you are. Rechargeable with the simple charger of your mobile phone, it also works with a cable in the power supply, but even where there is no possibility of both, you can use it with simple batteries. You can chargers from any charger with USB (the cable is not included). It has a built-in rechargeable battery but you can also use Size D batteries (not included). High Sensitivity Antenna. Small portable and practical so you can take it with you.