Hi! Okay, fetal dopplers are super tempting kasi affordable, but honestly a few of us tried buying secondhand ones and di reliable talaga, the readings were off, and it stressed us out more instead of reassuring us, you know? Better to save up for an ultrasound sa clinic na, or kung gusto mo talaga ng peace of mind, better invest sa brand new one from a trusted store kasi safety ng baby is not something to gamble on.