The Etymotic ER3SE Studio Edition High Accuracy Noise Isolating In-Ear Earphones are designed for studio monitoring and offer exceptional noise isolation. With a frequency range of 20Hz - 16kHz, these black earbuds provide a detailed sound experience. The built-in microphone and 3.5mm jack connectivity make them convenient for on-the-go use. The double earpieces ensure a comfortable fit, and the high accuracy noise isolation feature makes them ideal for professionals in the music industry.