Bluetooth is a wireless technology standard for exchanging data over short distances from fixed and mobile devices. 
Bluetooth was invented in 1998.
Bluetooth was invented, so when you want to listen to music or something like that you don't need to keep bringing an annoying long or short cord around with you wherever you go.
Bluetooth will connect to any device that you have. But your device has to be a touch screen device.
This is an example of a Bluetooth ue boom speaker. This speaker will play anywhere you want but you need to keep it charged.
Ue booms are really loud speakers but really expensive.
You can also use lots of other Bluetooth speakers likes theses speakers but you can get more.
I like Bluetooth speakers way better than wire/cord speakers because they are easy to carry around and they won’t get tangled up all the time. From the experience that I have had of Bluetooth speakers I think that ue boom speakers are the loudest.
Not all speakers are expensive but the cheaper they are the worse they are.
That is what I have learned in the past.
