This is a very interesting detector but beware. If you are a dedicated coin hunter searching in modern trash you will not be happy. No offense . You can only disc. out iron . Running at 17.5 kHz allows you to detect silver of course but not at the extreme depth you may have seen watching a youtube video. That quarter was clad not silver so the frequency caused it to be detected deeper. Small silver coins can be detected as deep as larger ones. Great news if your digging small spanish. The build quality is very good. Looks like a mini GPX. The battery box will have to be tethered to your belt unless you purchase an optional mount or rig some velcro to hold it on. Very deep on small gold and platinum jewelry. Hot on artifacts made of brass , pewter, and lead. Loads of sensitivity when needed. Silent search operation. Two ground balance systems. One for normal ground conditions, and a separate system for wet salt water and severe minerals on land. A plug in adapter to the wall outlet will be needed. They use a different plug over seas. As time allows I will begin doing some tests. I will not have time to answer questions until work slows down and time allows. It will separate targets very fast and sounds like an XP Goldmaxx Power using three tones. I believe Kellyco will add these soon. I also here they will be the service center in the US. Stay tuned.