Apple Lightning To Digital Av Adapter

If it still doesn't work, please follow these steps:

you need to go to system preferences>sound>then swap from your laptop/desktop inbuilt speakers to your tv's speakers, once you unplug the cable it will switch back to your inbuilt speakers. Also similarly for visuals, go to display in system preferences to switch between being mirrored or a second monitor.
Product advantages:
This is the latest version HDMI Adapter! The Digital AV Adapter supports mirroring of what is displayed on your device screen - including apps, presentations, websites, slides,-, shows and more to your HDMI equipped TV, display, projector or other compatible display in up to 1080p HD. Apps Supported: YouTube, Office, Sa,fari, Chrome, Face, time, etc.

WARRANTY

We'll refund your money if the item hasn't been delivered within 40 days after purchase. You have 2 weeks to request a refund — until day 60.
Product doesn't match the description? Contact us within 30 days after you receive it!
In case of cancellation, money will be refunded to your account within 3 days.