My cousin-in law gave me her old breast pump (my insurance sucks and does not provide one) AND my cousin got me a new breast pump through her insurance.

I'm a FTM and without knowing anything at this point, I'm leaning towards using the new one because its "smart", will sync up to my phone and tell me how much I'm getting from each breast. Also then I can return the flange kit for the used pump and get $20ish back.

I don't need 2 right? What do I do with the other one? Do you agree or am I missing a vital piece of information or something?