It is suitable for IOS and Android, with built-in high fidelity microphone, which supports playing, answering and volume adjusting functions. ^^ Enjoy the bass beat sound of ear-clip headphones that designed for comfort, stability and performance ^^ Custom copper ring shock yours hearing. Focus on sound quality -overweight bass. ^^ The main wire copper core high elastic wire is not deformed, and the wire length is 1.2 m. Headphone diameter; 4 cm ( 1.57 inches) ^^ 6. The standard 3.5 mm plug is fully covered and can be compatible with smart phones, tablets, desktop computers and other electronic products.