iTD Gear ED3 PRO Hi-Fi Headphones are in the class of HI-Fi professional high-end headphones. They are specifically designed to provide you with the fullest musical experience, reproducing clear and loud sounds and maintaining bass flexibility. That stars with special wiring threads that give you conduction rate of music to 99.9998% (nearly lossless transition of wire). And ends with four core plug all to achieve cleaner and a wider range of sound. Also, forget about that annoying sense of glitches during playback, cavity back shock phenomenon because their headset rear mesh design will counteract any harmonic resonance, giving you purer sound. Please note that these headphones are without a microphone.