I sent feedback yesterday.

Hi this is miamimuttonman, if you have a non compatible unit like a Garmin this is what you want to get along with the chip for your area sold separate, I have one and it’s helped me find the ledges and rocks where fish hide and concentrate. I highly recons this unit and it’s full function gps also which can be a back up to your existing unit. Five star unit 👍

Have this hanging from my t top and have no issues with it moving. The maps look good and it makes finding new spots easy. Throw away your waypoints and get cmor on your boat.

Had to buy this because of garmin. Charts look great on this for only being 7 inches.