suitable for running, riding, car, car, speakers, earphone, headphones, very light, easy to carry | Clear sound quality: Smooth sound quality, suitable for all 3.7 mm headphones, control music and switch songs However, please note: This product does not support the call function. | 100% Service Satisfaction: If % - if you are dissatisfied with our product quality, please contact us in time, we will give you a new product or 80% or 92% refund. Until you are satisfied. | Powerful Compatibility: No need to worry about iOS system upgrades. Our products are applicable to all Lightning devices for iPhone X / 10 / iPhone 8 / iPhone 8 Plus / iPhone 7 / iPhone 7 Plus and other high-end systems running iOS 10.3 or IOS 11.6. | This is the best choice for lovers of music and audiobooks. It is also a favorite device for game lovers. The original sound effects of the game allow you to enjoy a better gaming experience