Honsky - 3.5 mm Audio Extension Cable [4 poles TRRS Pro Stereo-Plus-Mic] Audio / Swipe Card Reader Extension Cable - 3.3 ft / 1 m long -3.5mm Male to Female - Silver Planted 1. 3.5mm with 4 segment/poles/rings,TRRS technology 2. High-purity OFC copper for best audio signal transfering, High-grade PVC skin for maximum electromagnetism resistance, and the soft skin for anti broken and durable. 3. Specially designed for Apple Iphone,Ipad, Ipod, and with this extension cable, you can listen to all of your favorite music through your most headphones. 4. Delivers crystal clear and professional stereo audio sound quality 5. Delicate surface, and high quality(professional Quality Control). You can use it as Christmas gift to your friends.