ITEM NAME:2pcs/set 3.5mm 1/8in TRRS 4-Pole Male Jack Plug Adapter Headphone DIY Connectors Product Description Description: Features: 1. Made of gold plating alloy, durable to use; 2. 4-pole metal plug with microphone and wire control functions for wider compatibility with phones; Specifications: Product material: gold plating alloy head Product size: 37 x 8 x 8mm/1.46 x 0.31 x 0.31" Product weight: 4g/pc Product color: black cap+ gold head Head diameter: 3.5mm Packing: 2pcs/bag Applications: for maintenance of standard 3.5mm headphones, suitable for computers, laptops, tablets, MP3, MP4, CD players and mobile phone headsets; used for microphones, audio equipment, mixers, and peripheral equipment to connect audio signals; Included: 2 x 3.5mm TRRS Jack Plugs.Included: 2 x 3.5mm TRRS Jack Plugs. Product color: black cap+ gold head. Product material: gold plating alloy head. If item is defective after 3 months, you can still send it back to us. We will send you a new one after receiving the defective item.