aks metal detector, 1400 meters professional hand-held high sensitivity rechargeable underground metal finder treasure locator gold silver copper scanner for archaeological (us) focket <b>specification:</b><br> condition:100% brand new<br> material: metal<br> color: rose gold<br> <p> size: approx. </p><p> (receiver) 16.5x5x34cm / 6.5x2x13.4in<br> (transmitter) 11x7.5x3.5cm / 4.3x3x1.4in<br> (box) 37x29x9cm / 14.6x11.4x3.5in<br> search system: microcomputer cpu control and reflection conductivity </p>search area: approx.1400 meters<br> inspection depth: approx. 25m<br> energy: 12v 1000-600mah<br> transmission frequency: 5.6-khz<br> signal frequency: 360-40hz<br> detection type: gold;silver;copper;precious stone<br> charging method: rechargeable batteries have been installed in the instrument.connect to charger and charge for 5-8 hours.<br> optional plug standard: us<br> <br> <b>package list:</b><br> 1 x receiver<br> 1 x transmitter <br> 3 x antenna<br> 1 x charger<br> 1 x aluminum box (with 2 keys)<br> 1 x manual <br> <br> <b>note:</b><br> this product built-in battery.<br>