D & K Exclusives Gold Plated 2.5mm Male to 3.5mm Female Audio Adapter Converter Headphone Earphone Headset Jack - Stereo or Mono New Gold Plated 2.5mm Male to 3.5mm Female Audio Headphone Adapter Gold Plated Connector Plug Provides Great Clear Audio Quality Adapter provides stereo/mono capabilities to convert your 3.5mm headset Converter lets you use the 3.5mm earphones with phones that have 2.5mm jack