Nokta Makro Multi Kruzer used 6 hours max. My wife thought she would like beach detecting but didn’t. This Multi Kruzer has three different frequencies, 5 khz, 14, khz, and 19 khz. It weighs less than three pounds and is built like a tank. It is completely waterproof and submersible down to 15 feet. It is also upgrade able via software from the Nokta website. Included in the package is a $120 set of waterproof headphones, which have never been used. The detector comes with an 11” X 7” Double D coil, USB cable for internet connection, wireless headphones (blue edition), charging cable for the wireless headphones, wall charger with cable for detector head, and factory user manual. Do a little research and you will see that the Makro Multi Kruzer is very highly rated and sought after as a relic detector in England and Europe. It goes deep and has a very stable and quiet Beach mode, too. Great detector…..I just don’t need it. $500 shipped in the lower 48 states. I might consider a partial trade on sand scoop or submersible waterproof pin pointer. Message me with what you have.