Would you like to optimize your listening experience with your headphones or earphones? iEMatch+ effortlessly reduces background noise, clarifies voices, expands dynamic range, and generally improves sound quality by adjusting the output level of your device. iEMatch+ works with all devices that have a 3.5 mm headphone jack. The short iEMatch+ cable features a switch to optimally set the gain in two stages for your in-ear earphones or headphones. With the Ultra-Sensitivity setting, the gain is reduced by 24 dB, and with the High-Sensitivity setting, by 12 dB. By attenuating the output level, you can increase the volume of the music source and listen to your music in the optimal adjustment range. In this way, iEMatch+ restores lost dynamics, reduces annoying background noise, and improves overall sound quality. This allows you to get the best performance from even your most sensitive earphones and headphones. iEMatch+ simply connects between the music source and the earphones/headphones. The cable is very compact and lightweight, extending the headphone cable by just a few centimeters.