Description: 3.5 male to 3.5 female, with 4 segments Suitable for different earphone jack of cell phones CTIA and OMTP conversion Solve the problem of incompatible cell phone headset Oxygen-free copper wire core with high quality TPE skin Compatible with devices which havef 3.5mm male to 3.5mm female interface Ideal to connect your CD players, stereos, speakers, headphones, PC/ TV tuners, etc. Brings much convenience to your daily life Easy and convenient to use Specification: Size: 15.5 x 0.9 x 0.9 cm / 6.1 x 0.35 x 0.35 inch Material: Metal and polyethylene Package Includes: 1 x CTIA to OMTP M to F 3.5mm Earphone Adapter