Cellet 4 feet AUX Audio Cable, 3.5mm to 3.5mm Stereo Audio Cable W/ Built-In Microphone & On/Off Switch COMPATIBLE- Works with any device equipped with standard 3.5mm audio jack or AUX-in port STEREO SOUND- 4 ft. 3.5 mm male to 3.5 mm male cable transmits sound in stereo BUILT IN MICROPHONE and on/off switch answers/hangs up phone calls, pause music and activate your Voice Assistant (depending on model) SIMPLY plug one end to your phone and the other to your car aux input to convert to a hands-free device FITS all 3.5 mm headphone jacks including of MP3 players, iPods, iPhones, smart phones, tablets, portable speakers and car port (AUX port)