Both the Beats Solo 3 and Beats Solo Pro are over-ear headphones that offer hours and hours of listening time. They look similar too, with a sleek band and the Beats signature B on the cups. However, there are some key differences. For example, the Beats Solo 3 don't have active noise cancellation. Of course, this makes them considerably more affordable than the Solo Pro, but does mean you won't get the best audio experience.