Hi Joyce,
I bought and started to use Babyplus device last Tuesday night. I was in my 18 weeks then. I used it for 1 week plus already. Just to share, last night, I felt my BB kicking me during the lesson time. I was not very sure if the BB was trying to respond to the lesson. Anyway, that was the very time I felt some kicking by the BB. This morning, I was slightly late in starting the lesson with my BB, I felt my BB's kicking again and I supposed my BB was reminding me to start lesson. For the past week, I sincerely started lessons on time with my BB using the device.
I am actually not very sure if it is due to the using of the babyplus device and the BB is responding to that. By default, I should be expecting BB's movement somewhere 19-20weeks onwards according to my gynae anyway.
I bought the device purely based on my gut feel, as I think, this could be another form of "tai1 Jiao4". I am not a hardworking person who will do a lot of reading to my BB and I dun think I have the patience to sit there listening to music with my BB.
I am not trying to promote the product anyway, just would like to share my experience after using the device.