http://www.newsweek.com/these-are-7-best-selling-bluetooth-speakers-amazon-1571092

The best reason to pick up a wireless Bluetooth speaker is to be able to take your music with you. In general, Bluetooth speakers have come down in price and gone up in sound quality, so that you can get a great portable speaker for around $50. In fact, all of these best-selling Bluetooth speakers on Amazon come in under $100.

These wireless speakers can provide accompanying music for all kinds of activities, from playing at the pool to taking a hike. A few speakers are even intended for use in the shower when you don't want to stop listening to that podcast or audiobook. If you don't need the extreme portability that Bluetooth affords, you may want a good home Wi-Fi speaker that plugs into the wall; otherwise a battery-powered Bluetooth should be your go-to speaker. There are plenty of good options on this list.