iPhone 7 headphone jack

iPhone7 doesn’t have a 3.5mm Headphone jack. Instead, you must either use EarPods that use a Lightning Connector - or you can purchase a Lightning Adapter for your existing 3.5mm headphones/EarPods.

Lightning to 3.5mm Headphone Jack Adapter

https://store.apple.com/uk/xc/product/MMX62ZM/A

EarPods with Lightning Connector

https://store.apple.com/uk/xc/product/MMTN2ZM/A

Are you asking about your iPad or your iPhone? The iPad 7th generation and iPhone 7 does not have a headphone jack. There are options if you want to use wired speakers you can buy from Apple. One would be a lightning to mini headphone jack. The other would be headphones with a lightning connector and the third is what most of us have transitioned to over the last few years and that's Bluetooth headphones (either earbuds, over the ear, on the ear).

If you want to pick up the lightning to mini headphone jack from Apple, click here --> https://www.apple.com/shop/product/MMX62AM/A/lightning-to-35-mm-headphone-jack-adapter?fnode=f24c0ea254f70a129f1e568d06e7cd2c86b4b57c407ae518f54f0f76ed4185119f4d34e75c0c322667215586cadc343e95eeeb592ba35c95253f8852f1cc50126810be29c846b2d18fbc5f3f928e80a6d683650cc459138a305cde0dac0cecbd039650dae951fa3ef211d29670778d5c