I was able to find my son's heartbeat with this one at 10 weeks ♡ such an amazing doppler!
I heard it doesn't work until after 30 weeks @carsonsmommy2k16 that is the best one got it off Amazon
I agree with @carsonsmommy2k16 that ones the best. Found my little girls heartbeat at 11 weeks
My sister had one. It never did work for us between 30-39 weeks
I got it to work