Made of fine quality material, practical, easy to operate and use, wide application range, has a long service life. Features: Communicates with vibration & light - LED light signal indicator and vibration indicate the detection of metal. Pulse induction technology (PI) - Allows hunting in salt water or in any type of soil, including black sand. Detection depth stability - quality circuitry maintains detection distance throughout the life of the battery. Target distancing - As you get closer to the target, the pulse of vibration and light will increase in intensity. Automatic tuning - The state of the art microprocessor controlled design requires no adjustments of any kind. Waterproof - Fully waterproof for 30 meters underwater. Best for seeking treasure undersea. Belt loop & wrist strap - Includes a belt loop to attach to any common belt clip as well as a wrist strap for added safety. Pulse induction search coil - Wider detecting distance, high sensitivity, even seek one tiny needle. Solid construction - Locate target easily in sand, fresh and salt water. Seeking treasure undersea - White LED indication, vibration indication. Search coil - Design pinpointer, better detecting area & depth. Specifications: Material: ABS Color: yellow+black+grey Detection mode: pulse induction (PI) Detect objects: all metal (iron, aluminum loop, small aluminum product, coins, gold, bronze, silver) Alarm mode: vibration & white LED light Water resistant level: 30M/98ft waterproof Tuning: automatic Sensitivity: 25 cents coin: 10mm; one dollar coin: 15mm Frequency: 6.8KHz Current: standby: 8mA, Max.: 20mA Operating current: 0.03A Operating voltage: 9V Operating temperature: -5 to +55 Battery: 1 * 6F22 9V battery (not included) Application: testing metal foreign body of raw materials, fuel and food, detection of underground pipeline & line, archaeology, exploration, found buried treasures of gold, silver and metal artifacts, the acquisition of scrap metal industry, checking metal foreign bodies in delivery and luggage. Item size: 420 * 112 * 105mm / 16.5 * 4.4 * 4.1in Item weight: 391g / 13.8ounce Package size: 460 * 95 * 95mm / 18.1 * 3.7 * 3.7in Package weight: 555g / 1.2lb Packing List: 1 * Metal Detector 1 * User Manual