Extended connection to devices with 3...5 mm auxiliary ports. It can be used to connect an iPad, MP3 player, DVD, smartphone, tablet, laptop, smart TV, echo dot or any other device equipped with a 3.5mm auxiliary port to your headphones, headset, amplifier, speakers, car stereo or home theater system, etc.Copper shielding enhances audio quality and reduces signal loss, while 24K gold plated connector and flexible nylon braid prevent corrosion and extend service life