This 2.5mm M/F Stereo Cable allows you to extend the length of an existing 2.5mm jack. It's the perfect way to protect the 2.5mm port on your device from repeated plugging and unplugging. Don't wait until it's too late and you have to replace an expensive device because the 2.5mm port is no longer working. Protect it with this cable! Ideal for smart phones, tablets, MP3 players, laptops, and other devices with a 2.5mm jack.