Is your volume too low. They are really cheap.
Iphone 7 Plus Review The Great Headphone Jack Debate
Macbook pro headphone jack not working properly. If your audio drivers are not working then you need to buy an external usb sound card. Check your headphone cable connector remote and earbuds for damage like wear or breakage. I messed with the port for hours trying to pick out the stuck tip. If the sound is still not working check the headphone jack for issues. Dust or fluff is enough to block the port from recognizing your headphones or speakers. Headphone jack not working properly recently one pair of earbuds snapped in half while plugged into my macbook.
Check for debris in the headphone port on your iphone ipad or ipod touch. My macbook pros headphones jack is not working properly. It is basically an external headphone and microphone jack with a usb connector that you plug into your computers usb port. My retina macbook pro has recently stopped detecting headphones properly when they are plugged. Here are the things you should try. Internal speakers will not work.
The mic also functions properly eg. This is the first thing you should do when the speakers on your macbook pro are not working properly. To remove debris gently brush all openings with a small soft bristled brush thats clean and dry. Reader jeremy saklad reports a problem many have experienced over many years including yours truly. The mic on the earpods works well. Any headphones or speakers connected to the laptop using that jack makes no sound.
Try blowing the dust off the jack and from inside the port on your mac to see if that solves the problem. However it is able to detect the headphones when inserted when i check system preferences sounds and audio midi setup its there. Look for debris on the meshes in each earbud. Unplug any headphone or external speakers connected to your macbook pro. Plug the headphones back in while holding the volume buttons at the same time. Macbook stuck on digital optical out with red light coming out of headphone port.
Using that you can plug in headphones and you can plug in external computer speakers.