Description: This is a bi-directional adapter which converts either OMTP to CTIA or CTIA to OMTP. With this adapter, your iPhone / Moto earphone will work well on Samsung / HTC /Nokia / Lenovo mobile. With this adapter, your Samsung / HTC /Nokia / Lenovo earphone will work well in iPhone / Moto. This adapter may help with Xbox One and PS4 headset issues. Gold plated connector for better signal connection. 100% foil shielding and polyethylene dielectric reduce outside interference and signal loss for good sound quality, respectively. Specification: Material: metal + polyethylene Size:Approx. 3.8CM X 0.8CM X 0.8CM Package Includes: 2 pcs 3.5MM OMTP to CTIA Earphone Adapter