This little metal detector works as promised and as expected -- provided your expectations are limited to a fun day or a few hours at the beach or playground. Controls are not explained well in the documentation, but with a little experimentation, you can figure it out. We got this for a family trip to the beach -- and for the kids to share with me, and we all had a good time with it. This isn't professional equipment, not for relic hunters, but works easily and well for shallow coin hunts. Discriminator feature does work and is helpful where there is much trash.