Is There a way to fix this
iPhone 6s, iOS 10
Go to Settings > Bluetooth and turn off Bluetooth then back on.
If that doesn't help, un pair then re pair your headset > Set up and use third-party Bluetooth accessories - Apple Support
Sorry that wasn't clear I'm taking about my wired head set.
The one that came with the phone
I can hear but the microphone doesn't, they can't hear me and I can't use for dictation and is north he head set because it works with my iPad
Ok... try the help in this support article > If your headphones don't work with your iPhone, iPad, or iPod touch - Apple Support
Headset is not working for phone calls on iPhone 6s with update the iOS 10
