I have this nice little speaker myself. Under $20 and so easy to take with you. Mine is in my classroom where I use it for both my phone and iPad.
I love my 7" Kindle Fire. Just $50 and it fits nicely into my bag. It also works well in my BYOD classroom.
Want to get rid of your cable bill? I personally have a ROKU. Other options are the apple TV device or this FireTV stick. $40.