Customer Service - If for any reason you are not satisfied with this item, please feel free to contact us by email, we will give you a satisfactory solution immediately. Plug and Play- Small size, simple and convenient to use and operate, practical and useful, just plug and go. Delicate appearance, not easy to damage, and you can use for a long time. Compact Durable - 3.5mm male to 2.5mm female audio adapter adopt electroplating process, Aluminum shell,Anti- scratching more durable. Excellent Sound- Gold plated connector, high quality shell ,anti-interference, making the sound signal transmits with minimal signal loss. Standard 3.5mm M to 2.5mm F adapter - Lets you use common 2.5mm earphones for most phones with 3.5 mm headphone jack. Enjoy your music with your original headset now!.