Welcome Back (and riddle)!

Hope everyone had a great winter break!  I know I enjoyed time with my family.  In replace of a riddle to determine our theme this week, I thought we should try a riddle to determine what Miss Clark got over break.  See if you can figure it out!

I like to travel on the road.

I play music through my speakers.

I have lights on my head and my tail.

What am I?