Specifications: Detects all metals: gold, silver, copper, iron, etc. Detection depth: 150 cm, and more for large pieces. Detection depth: 30 cm for small pieces (half a riyal). Lithium-ion batteries, lasting two months with intermittent use or two weeks with continuous use. Two coils: one 20 cm and one 30 cm for greater depth. Charging with a regular phone charger (Type-C). The device is easy to assemble and disassemble, with adjustable length. Available with a regular rod or a strong carbon fiber rod (with a price difference). Includes internal speakers and external earphones. Good detection range and higher sensitivity for precious metals and those with higher electrical conductivity, such as copper. Shipping available according to buyer's choice. Device color: white, gray, or black upon request. The buyer can test and inspect the device before purchasing. Note: There is a model for 700 SAR with a detection depth of 1 meter. And there is a model for 250 SAR, small, with a depth of 15 cm.