CESS 3.5mm Stereo Jack to 2.5mm Stereo Plug Earphone Adapter - 2.5mm Stereo Male to 3.5mm Stereo Female (jcx) (2 Pack) 3. 5mm Stereo Female to 2. 5mm Stereo Male Adaptor Work with all your audio devices, including: iPODs, Cellphone, MP3, MP4, Discman, Walkman It is a reliable and efficient product for you Package Included 2 Adapters