It is no substitute for speech and language therapy, of course, but it can be useful for children who are having difficulty distinguishing certain sounds, e.g. ‘p’, and ‘b’ or ‘th’ and ‘f’.
I have used it successfully in the past with EAL learners, for example.
It looks a bit scary to me, but I haven’t yet found a child or young person that thinks so – here it is in action:
Unfortunately, this one isn’t free, but at £6.99 it could be well worth getting one copy for your school or establishment.
As always, your thoughts and/or comments are appreciated!