Alexa voice control for Samsung TV

We can ask Alexa to navigate Samsung TV’s, for example move left,move down etc.
How do we ask it to select a particular option though?
For example if controlling a firestick via Alexa voice, you would simply say Alexa Select.
And using built in Alexa on newer TV’s this does indeed work, however the problem is that the TV’s built in MIC has trouble picking up your voice when the volume is higher, works great at very low volume.

Any ideas?