Specifications Fully Automatic and All Metal Detectors- Your deector detects all kinds of metal objects. THREE COLORS FOR OPTIONAL Fully Automatic and All Metal Detectors- Your deector detects all kinds of metal objects. Unless you have set for some objects that you don not want to detect. LCD- The LCD with light, it improve to identify the metal in night or caliginous outside. Target Identity:-The detected objects are shown on the LCD display. You can decide immediately if the objects worth to be recovered. Unwanted Target Elimination- You can set the detector not to respond to some objects. Unique Tone for Target- You don not have to keep watching the LCD display, when an object is being detected, an unique tone corresponding to a target will generate. You may even searching when there is little or no light. No Clumsy Slack Cable- hidden search coil cable(connecting between control unit and search coil)avoid entangling and for ease of stem length adjustment. Headphone Jack- provided for headphone connection. Both stereo or mono headphone can be used. Volume Control- for adjusting the output volume to the loud speaker or headphone. Batteries Condition Indicator- shows the conditions of the batteries in the battery compartment. Waterproof Search Coil- lets you use the detector in the shallow water. Adjustable Stem- lets you adjust the detector length for comfortable use. The micro-plug that connects the search coil and the controller unit is made of metal which makes the plug more reliable. Armrest&stem- designed to eliminate strain on foream. The nylon bracket to further secure the slip of the hand compartment after long time holding the detector by arm. Power- Use six 1.5-volt AA alkaline batteries. 1. BATTERY: six 1.5-volt AA alkaline batteries 2. OPERATING CURRENT: STANDBY--65mA MAX--150mA 3.OPERATING VOLTAGE RANGE: 7.2--9.6v 4.OPERATING PREQUENCY: 7.5KHZ+/-1KHZ 5.SENSITIVITY:Min 8''inch(Test Coin:US50) 6 AUDIO FREQUENCY: 294Hz(re) 330Hz(me) 349HZ(fa) 392Hz(so) 440Hz(la) 494Hz(ti) 523Hz(do) 7.TEMPERATURE RANGE:-20-60 degree 8.SIZE: 540mm(L)*345mm(W)*150mm(H) 9.GROSS WEIGHT: 1.4KG 10.NET WEIGHT: 1.1KG