Feature: 1. High Accuracy: This metal detector features a remote search system and accurate location detection system for high exploration accuracy. 2. Excellent ABS Material: This metal detector is made of excellent ABS material, which is sturdy and wear resistant, not easy to be damaged and has a long service life. 3. Built In 1600mAh Battery: This metal detector has a built in 1600mAh high capacity rechargeable battery for long lasting battery life. 4. Wide Application: This metal detector has a wide range of applications and is suitable for searching to find gold, silver, copper and so on. 5. 400 To 470MHZ Signal Frequency: This metal detector has a signal frequency of 400 to 470MHZ, you can use the metal detector to explore more places to find treasures, search for gold, silver, copper, and improve the efficiency of treasure hunters. Specification: Item Type: Metal Detector Material: ABS Controller: Automatic Rotary Search Voice System: Visual and Auditory Search Range: 5-99 Meters Detection Depth: Approx. 1 x 15m / 3.3 x 49.2ft Detector: 12V Lithium Battery x 1, Battery Capacity: 1600mAh ( Shipped With Built In Battery ) Receiver: 12V Lithium Battery x 1, Battery Capacity: 1600mAh ( Shipped With Built In Battery ) Transmit Frequency: 5.6-6KHZ Signal Frequency: 400-470MHZ Charging Time: 10-12H Detection Depth: Maximum Detection Depth: Approx. 15m/49.2ft This instrument can detect at least 3.5 meters for a 5cmx5cm object. For a 30cmx30cm object, it can detect up to 5-8 meters, and if the object of this size has been buried for a long time, it can reach 12 meters. If the area of the object is larger, his detection depth will deepen. Function: It can accurately determine the buried position of the object and can locate it. It can also rely on the frequency regulator to identify the specific type of metal. How To Use: Choose a comfortable position on the floor and hold the instrument in your hands with your elbows firmly pressed against the sides of your body. Note: You must keep the instrument in front of your body so that the receiving antenna has enough room to spread out, and so that the antenna is tilted slightly downward from horizontal. The angle should be between 7 and 10 degrees. 1. Holding the instrument as described above, scan very slowly in an arc while turning yourself. At this time the detector elbow should always be close to the sides of the body, about turn 40 degrees to 60 degrees can be. Note: The detector must rotate slowly and keep the body steady. 2. Standardize your scanning motion. First, let the receiving antenna correctly after stretching out. Make the receiving antenna in front of you, and your body into a 90 degree spread, not to the left and right sides of the deflection. 3. When the antenna is aligned with the target, the instrument will lock on, even though you continue to detect across the target. When you feel that this lock is effective, you memorize the direction. Then, move the instrument about 10 meters to the left or right and repeat the process of locking on to the target as just described. Observe the locking direction this time, the intersection of the two directions is the buried position of the target. 4. If you feel that the specific position measured just now still has a certain offset, you can lock from another angle. If the target is within 10 meters, you will slowly and smoothly walk along one of the set routes. When you pass the target and are directly above it, the antenna of the instrument will swing both ways. The measured position will then be very accurate.. Package List: 1 x Detector With Screen1 x Receiver1 x Earphone1 x Headphone Storage Case1 x Power Adapter1 x Antenna1 Pack x Accessories 1 x Manual1 x Black Storage Case Note: 1. Do not disassemble or modify the instrument.2. Try to avoid cell phone or other metal close to the instrument during operation.3. Please use the instrument well under the temperature of 0??C to 40??C and 10% to 30% humidity.4. Use wires, pins and other metal objects to short circuit the battery, and do not put the battery with necklaces and other metal objects, or it will lead to electrical leakage, overheating, bursting and fire.5. Do not charge continuously for more than 24 hours. Please use AC power. Note: A new battery will only be effective if it undergoes two or three full charging and discharging cycles.6. Keep away from dust and dirt, which can cause erosion and wear parts. Wipe the detector regularly with a damp cloth to keep it looking neat and new. Do not use harsh chemicals to clean the product.7. Do not place containers of water, etc. next to the charger to avoid overheating, leakage or malfunctioning of the charger due to splashing of water.8. Don't put the instrument in these places for charging: places under direct sunlight, places where the outside temperature is lower than 0 degrees or higher than 40 degrees, humid and dusty places, places with high vibration, near the TV set and so on.