Logitech's higher-end audio label Ultimate Ears picked the NAMM show to release its best in-ear headphones to date. The Ultimate Ears 18 Pro is the first set to include six separate speakers (drivers) per earbud and provides yet more distinction between treble, the mid-range and bass than the three- or four-speaker sets that often occupy the space. They reduce background noise by 26dB and now have a low-distortion cable that protects the sound until it reaches the earpieces.