AB6/Hi-Res Headphones Wired HiFi Monitor Headphones with Microphone 50mm Driver Dual-Hole Connection Closed-Back for Instrument Practice Studio Black 【Supports Hi-Res Audio】Accurately reproduces high frequencies beyond the audible range, realizing the original sound quality, including the overall sound positioning and the spread of echoes. 【50mm Driver & Large Housing】CCAW voice coil that increases the responsiveness of the vibration system through weight reduction, and a hybrid structure of aluminum and resin with an oval housing, suppressing unnecessary vibrations and achieving clear sound quality with low distortion. 【Both Sound Isolation and Comfortable Fit】The oval earcups that fit the contours of the ears allow for 30-degree rotation inside the headphones, effectively preventing sound leakage and noise. Soft, low-rebound cushions are used, so your ears won't hurt even after wearing them for long periods. 【Dual-Hole Connection & Two Types of Cables】Equipped with 6.35mm and 3.5mm jacks on both sides of the headphones, two types of single-sided cables are included to choose from depending on the situation, allowing easy switching between instruments and smartphones without an adapter. 【Instrument Practice & Music Sharing】Because it can accurately reproduce high frequencies beyond the audible range, when connected to an instrument, the headphones' functions can be maximized by a power amplifier. With the dual-hole connection specification, music from one device can be played simultaneously on multiple headphones.