This radio is for your vehicle if you don't have Sirius XM Radio as an option. It does not run any type of battery. It is powered by your vehicle only. Nor does it have earbub port. This product only has an auxiliary cord that is if your vehicle has a port. If not...you will have to follow the directions, like I did, for using the magnetic antenna that comes with it. Again...it is for your vehicle. You can also use it via radio system at home but you have to buy the radio dock. Other words, not a portable radio you can take around and just listen to on a charge like a mp3 player, tablet, or your phone.