I think b but the the vocal command is easy too. You can say fifty and fifty it's okay , so
Yeah voc vocal command is okay. But w we've said previously that maybe it's not going to be th l the main
There's uh also a number , you know.
Yeah , but when you're zapping you're changing from one channel to the other , so you're passing through all the channels. So , when you say I want to go to the channel number twenty that's  you've decided to go to channel twenty , so you can say channel twenty , or channel four , because you really want to go on this channel.