The third generation of the Ultimate Ears UE 18+, the UE 18+ Pro is great for music enjoyment, stage performances, and music monitoring. It boasts the same great sound with even more headroom, thanks to the addition of the company's latest True Tone Plus high-output drivers, originally developed for the UE LIVE. The IEMs feature six proprietary balanced-armature drivers in a four-way crossover design. Patented triple-bore sound channels keep the lows, mids, and highs separate until they interact with your eardrum, resulting in a clear, accurate sound. Plus, this version adds the new Ultimate Ears IPX connector. On this drop, you'll get both the UE SuperBax cable with IPX connector ($199.99 value) and the exclusive Bluetooth cable with IPX connector ($99.99 value).