D & K Exclusives&reg; Red/Black 3.5mm Male to 3.5mm Female Audio Adapter Converter Headphone Earphone Headset Jack - Stereo or Mono (red-3.5) New 4"inch 3.5mm Male to 3.5mm Female Audio Headphone Adapter 4" 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 3.5mm jack