Lol my dad & mom text me these yesterday with a similar comment, giving me a hard time. Dad just shook his head when he was fishing with me the other day. While I was adjusting the transducer and settings on the screen, he was catching fish.
Forward facing depth finder that basically shows you the fish in real time.
You can see the fish, see them moving and see your jig / bait and literally put it right in front of their face.
With crappie ideally you want it in front and JUUUUST above them.
When they start towards it, raise it up an inch or so. They can't STAND that.
Lots of youtube videos that show it.