ITEM NAME:2x 3.5mm stereo male to male jack audio plug connector/coupler adapter joiner TE Product Name: 3.5mm 4 section public to public audio adapter Product function: audio signal transfer and extension Product plug: Audio 3.5mm 4 copper nickel plated head Product injection molding material: PVC Product application range: mobile phone, tablet PC, Bluetooth player, etc. Other Names of Products: Headphones 4 public-to-public transcription adapters AUX vehicle audio cable headphones 4 class two-end connector 3.5mm Packing: 2Pcs.Product plug: Audio 3.5mm 4 copper nickel plated head. Product function: audio signal transfer and extension.