Babyplus is developed by Dr Brent Logan . It produces repetitive rhythmic sounds that is believed to exercise the prenatal baby's brain which claims to have the same effect as mum's heartbeats. It claims that baby is able to identify and compare these rhythmic sounds and their mums' heartbeats. Thus the exercise will help the baby to strengthen his or her brain cells and slowly build the baby's memory for greater learning capacity throughout life. I did try this product throughout my preganancy but the effect is yet to be seen .
My personal opinion is how smart the baby is, depends on a lot of other factors too, for example, the environment he or she is brought up, the genetic factors, the food the babies take and his surroundings. But babies do get more relaxed at birth and they are easier nursed and sleep better after listening to babyplus.