Description: Many cell phones do not use a standard headset jack and you are forced to use their original earphones. This adaptor enable your headset to use a standard earphone jack to get full stereo sound from. Perfect for listening to MP3s with your own earphones, speakers etc. Convert the 3.5mm earphone jack to 3.5mm earphone jack. Connectors: One end is 3.5mm female, the other is 3.5mm male. Material: Metal, Plastic Size Chart: Size(L x D): Approx. 145 x 3.5mm/5.7 x 0.14inch Package Includes: 1Piece 3.5mm Male to 3.5mm Female Earphone Adapter Cable