Cable with 4pin male minijack connectors (4 poles) at both ends. The 4pin jack cables are called TRRS (Tip, Ring 1, Ring 2, Sleeve). This type of cables is usually used to connect audio and microphone, audio and video or audio only. Ideal for connecting smartphones, tablets, camcorders, MP3, music equipment, etc. Specifications Cable with 4-pin 3.5 mm minijack connectors on both endsmos. Cable length 3 m. Male connector on one end. Female connector on the other end. Extension cable. Pin to pin connection. Cable of black color. Ideal for connecting audio and microphone, audio and video or audio only.