This cable is ideal for connecting Smartphones, MP3 players & tablets to a stereo receiver, speaker or other RCA enabled device. It supports mobile devices containing a standard 3.5mm auxiliary jack, which are commonly associated with headphones/ear buds.This bi-directional cable is also useful for connecting an older DVD player to a computer or speaker with a 3.5mm 'Line-In' port for recording or listening. This adapter will convert a 3.5mm headphone-style input into the left/right 2 RCA connection. 2 x RCA "Y" Audio Cable connects