1、Long Service Life: This converter is made of metal, which has longer service life than the plastic ones painted with metallic, and is corrosion resistant, ensure minimal signal loss 2、Standard 3.5MM to 6.35MM: Headphones with standard 3.5mm/0.14in plug can be connected to audio equipment with 6.35mm/0.25in stereo jack through this adapter 3、Compatible: This adapter makes headphones or other equipment compatible with most professional audio and home audio equipment 4、Application: This adapter is small and convenient to carry, suitable for amplifiers, mixing consoles, home theater equipment, AV receivers, etc. 5、Gear Grinding Technology: This stereo jack adapter features gear grinding technology, 360 degree grip pedals help with easy plugging and unplugging