how to tell the difference between beats solo 2 and 3

Solo 2 VS Solo 3: Old or New Beats Solo Beats Solo 2 Vs Solo 3 – Which One Beats Mixr vs Beats Solo 2 - Which Beats Solo 2 vs Solo 3 - Comparison Beats Studio 2 vs Solo 3 Beats Solo 2 vs Solo 3: Pros u0026 Cons and Beats Solo HD vs Beats Solo 2 — Joe's Beats Solo 2 vs Solo 3 – What's The Difference Between Beats Solo 2 and Solo 3 Beats Studio 3 vs Solo 3 – Wireless Beats solo 2 vs Beats solo 3 wireless Beats Solo3 Wireless On-Ear Headphones Difference between Solo 2 and Solo 3 Beats Solo3 vs Beats Studio 3: What's Beats Solo3 Wireless review: Good but Review Beats by Dre Studio 2 vs Studio 3 Ways to Tell if Beats Are Fake - wikiHow Beats Solo3 vs Studio3 Wireless Reset your Beats on-ear or over-ear Beats Solo3 Wireless review: Good but how to tell the difference between beats solo 2 and 3