Quick view<br />To connect phone & 3.5mm earphone.<br />To connect phone & 3.5mm car aux cable for listening to music in car.<br />And other usage can be found: 3.5mm extension cable・ 3.5mm earphone splitter and other 3.5mm jack accessories probably <br />need the adapter cable.<br />High fidelity・ provides lossless audio experience.<br /> <br />Remark: Not used for ISO 10.3.1 system and above!<br /> <br /> <br />Compatibility<br />Compatible with for iPhone 7・ for iPhone 7 Plus<br />Also backwards compatible with for iPhone 6S・ for iPhone 6S Plus・ for iPhone 6・ for iPhone 6 Plus