Just brought a Doppler!

Beck 👨‍👩‍👧‍👧🌈👶🏻🖤🖤🌈🤰🏻

Wondering the earliest anyone has heard the heart beat on the premium Doppler I read 16 weeks why so expensive then when cheaper ones you can hear from 12?

I paid 20 bucks of Gumtree :)