Still not found it, I’ve also had a warning saying smart key battery low! It just keeps getting better

I’ve looked under seats tried to get into the dashboard even on the back seats (I’m sure it can’t work from there) but no joy. We know it’s in the car because we can start the engine when the spare set are in the house I’ve even looked into a frequency receiver to find it but looks like I need...

Hi all, Have have Ben trying in vain to find a lost set of keys in my discovery for the past few months, I know it’s there because I can start the engine without the spare set. Does anyone know how I could find them as I have looked everywhere. Land Rover said they could have a look but it will...