AUX cable is a kind of audio cable.3.5mm cable  is suitable for cellphone,vcd, dvd, TV, recorder, cd, etc. and audio, amplifier, mixer between the connection and transmission of their audio signals, widely used in recording studios, stage audio and audio system.The 3.5mm plug refers to a coaxial audio plug with a diameter of 3.5mm. It is a connector commonly used to connect audio equipment to transmit audio signals. The earphone is divided into three layers of stereo sound..we can do the OEM AND ODM,Any need, please contact with Ms Dai, email is sales@huayanelec.com.