1/4” Male To 3.5mm Stereo Female Plug Extension Cable Or Adapter (For Example, Connect The Headphones To The Piano With A 1/4inch Extension Cable). They Are Sturdy And Perfectly Fit, Solved The Problem That You Need To Change Frequently When Using The Old Adapter. Cables Snap-In/On Nice And Snug. No Cracking, Humming, Or Cutting Out. For Very Little Money There Is A Dramatic Improvement In Fidelity. It Has A Strong Body That Is Made Entirely, Has A Solid Structure, And A Black Coat, Perfect For Carrying Around. Widely Work With Headphone, Karaoke System, Home Audio Equipment, Amplifiers, Mixing Console, Home Theater Devices Or Av Receivers, Piano, Bass, Guitar…;