High-Quality Sound iPhone Earphone Jack Compatible with all iPhones [3.5mm Earphone Conversion Adapter] This product is an audio conversion adapter that converts audio output from a 3.5mm audio jack via the iPhone charging port. This product is designed for listening to music and watching videos, not for phone calls. Please use the phone itself when answering calls. *Not compatible with selfie sticks. [Plug and Play] No complicated settings or connections are required. It works simply by plugging it in. We have also verified compatibility with the latest iOS 13 version, and it can be used not only with iPhones but also with iPads. [High-Quality Music Playback] High-quality copper wire material is used internally, resulting in good signal transmission. By adopting Hi-Fi technology, you can enjoy CD-quality high-quality sound. All the details and rich dynamics of the music are revealed. [Material Used] Both plugs use aluminum alloy material, which is characterized by corrosion resistance and oxidation prevention. Durable TPE material is used for the cable part, making the cord flexible, less likely to break, and can be used for many years. [Quality Guarantee] In the unlikely event of an initial defect, please contact us before leaving a review, and we will exchange or return the product free of charge. [Shipping] We carefully package the product (ziplock waterproof protection + envelope) and ship it within 24 hours.