Quantity: (5-Pack) Size: Length, Width: (4.3cm x 2.3cm) Color: (Black) Connectors 1: (1/8") 3, 5mm 4 Pole Stereo TRRS Audio Jack Male, Connectors 2: 4 Pin Female Jack Screw Terminal Block Product Applicable Equipment: Use for Microphone Jack, Earphone Jack, AV PC Audio Video Jack .External audio connection.Can extend the length of the 3.5mm audio cable, connect the cable with the end of the cable to the 3.5mm 4-pole stereo audio jack. Wire range : AWG2616, pin: 4 way/pin, compact design and reliable connection for 3.5mm female audio to screw terminal adapter cable Screw type / solderless, no soldering required , easy to use, only need a screwdriver and wire stripper to terminate 3.5mm cables, save installers time and hassle. Product Description Quantity: (5-Pack) Size: Length, Width: (4.3cm x 2.3cm) Color: (Black) Connectors 1: (1/8) 3.5mm 4 Pole Stereo TRRS Audio Male Plug, Connectors 2: 4 Pin Screw Terminal Female Plug Range of leads: AWG2616, Pin: 4 way/pin, Product connection mode: welding plugs screw connection Product polarity: "L" left channel, "R" right channel, "V" microphone, "ground wire" Product Applicable equipment: use for microphone jack, earphone jack, external audio connection.