ZS-KL21804 2 in 1 8 Pin to 3.5mm Audio + 8 Pin Charging Interface, Earphone Adapter, Suitable for All IOS Systems 1. High-quality materials and chips ensure the stability of transmission, so as to obtain a better comfort experience. Low impedance and high sensitivity, can accurately receive audio data 2. Charging and audio interface allows your device to use 3.5mm headphones to listen to music, watch videos and play games while charging 3. Plug and play. Support all IOS systems. It has a decoder chip inside, so dont worry about it not working when the iOS system is upgraded. It still works 4. 2A current, charging speed is increased, saving charging time 5. Small, easy to put in the pocket, easy to use Prompt: 1. Please connect the headset and charging cable to the adapter first, and then connect the adapter to the phone. (Reverse steps may affect audio output) 2. It is recommended to use original headphones and charging cable to ensure better sound quality and charging efficiency 3. No call function