D & K Exclusives&reg; Gold Plated 3.5mm Male to 2.5mm Female Headphone Audio Adapter Jack Stereo or Mono for Apple iPhone 3GS 4G 4S 5 Samsung Galaxy S3 S4 Galaxy Note 2 iPad 2 3 4 iPad Mini Gold Plated Connector Plug Provides Great Clear Audio Quality 3.5mm M to 2.5mm F adapter lets you use 2.5mm earphones with most phones 4-pole adaptor as used in many of today's smartphones Terminated with a 3.5mm socket to listen to MP3s or radio