yes ive had quite a few they r rubbish my son went through this and also microscope too and to be honest i got totsly fed up going out with him and we found nothing or it ran out of battery, i ended up getting him chemistry sets and things that were scientific fr home use, rock crystals, bath bombs, all that its far better
One of the reviews said that theirs detected a ring but when the ring was covered with a t-shirt the detector was silent. I'm assuming those costing hundreds of pounds are more efficient but the cheaper ones are basically toys.
We bought my grandson a fairly cheap model, just to keep him happy - he was about six. We lived in a house built in the grounds of an old house, and he was happily using his metal detector, when a 'find' was indicated. With much enthusiasm he and his dad started digging, only to find a rather large piece of old piping from the old house, a bit disappointing, but kept a rather over-active young man busy for a couple of hours.
Sorry, missed this Riverwalk. No idea at all, it was really just a toy. Our next door neighbour used to do a lot of detecting, but seems to have given up recently. She says herself she never discovered anything very exciting.