Features: This 3.5mm extension cable adapter features 3/4 poles compatibilities, enabling conversion between audios devices while connectors ensures sound quality with minimal signal loss. This headphone adapter withstands frequent plugging/unplugging while maintaining stable audios transmission for mobile, car environment. Ideal for audiophiles, gamers, and remote workers needing extended reach for headsets with functionality across computers, smartphones, and conference systems. Perfectly extends headphones in theaters, stereo, or office setups where device port is hard to reach, supporting simultaneous audios output and input through universal 3.5mm interfaces. Achieve audios expansion without driver – simply connect your headphones to this audios extenders for compatibilities for mainstream communication platforms. Specifications: Material: ABS Plastic Size: about. 51.45×8.45mm/2.03x0.33in Pattern: 3 poles/4 poles Package Includes: 2pcs Extension Adapter note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.