How do I connect my new Haylou Bluetooth Headphones to my Sony Android TV?

I have purchased Haylou Bluetooth headphones and have attempted to connect them to my Sony Android TV using TV Settings and going to Bluetooth Settings, The TV doesn’t find the headphones which probably means that the bluetooth supports only keyboards and mice. I have tried connecting the headphones to my phones and it’s working fine.

Thanks for any help from those who have tried this and succeeded.