The single biggest asset Beats Executive brings to the table is an outstanding industrial design. Folded completely open, the model looks like an evolution of Beats Studio, complete with the same oval-shaped over-ear earcups, cool hinges, and soft-looking earpads. Executive can fold up for storage exactly like Studio, or become even flatter by twisting its earcups on 90-degree angles. Beats Pro’s design is reflected in Executive’s heavily…