At what age can a baby start to sit/jump in a jumperoo?

When they can hold up there head 100%

@beemommyof3 this is also when they can sit up on their own too? Around what age do you think?

I did sit me up chair at 4 months. My daughter could hold her head and sit up at 3 months. Depends on child development. I wouldnt put them in if they are gonna slouch down in the seat with a slanted neck .

@beemommyof3 yes, makes sense. Thanks!