RCA adapter length is 8Inch (Appr: 20CM) 3.5 mm mini-jack to 2-RCA stereo audio Y adapter cableRCA Female Stereo Plug is perfect to plug a portable CD player MP3 player iPod smartphone tablet PC sound card and other devices with aux connector into the existing RCA connectionsRCA (M) to 2 RCA (F) stereo audio Y adapter subwoofer cable will send your music from an MP3 player to a stereo system. Plugs audio cable is designed to split a stereo signal high-quality polished connectors and corrosion-resistant 3.5 mm connectors; prevent radio frequency interference (RFI) and electromagnetic interference (EMI). 2-RCA stereo audio Y adapter cable one end has a female 3.5 mm stereo mini jack and the other end has two color-coded male RCA plugs (left and right audio channels).