Features: - 100% 2.5mm Male to 3.5mm Female audio adapter For Nokia AD-52 - Easy connection, just plug it - Nickel plated connectors - Easy to switch your 2.5mm jack to 3.5mm standard stereo jack to fits for your headphone - Standard 3.5mm Earphone Plug suit for all Audio Devices with 3.5mm earphone jack (iPod, Zune, MP3, MP4, CD Players, Nano, PDA, PSP, NDS, etc.)