A:Answer Hello TJC1952, There are several differences between the original Wonderboom and the Wonderboom 2---upgrades, if you will. The first upgrade is found on the underside of the Wonderboom 2 and the Outdoor Boost button which enhances the sound for when you're outside. Next, the battery life is 30% longer from 10 hours to 13 hours. The durability rating is now IP67 which means that the Wonderboom 2 isn't only waterproof, but is now also dust-proof. With the Wonderboom 2, you can now not only double up with other Wonderbooms, but when you pair with another Wonderboom 2 you can now do so with a true wireless experience. For more on the features of the Wonderboom 2, here's a link to the product page: https://www.ultimateears.com/en-us/wireless-speakers/wonderboom-2.html.