1、Premium Material: Made of premium aluminum, the metal detector is sturdy, durable, reliable, with good accuracy and stability, and has a long service life. 2、Convenient: The rechargeable metal detector has intelligent modular operation, powerful, convenient, fast speed and efficiency, is easy and fast, advanced and efficient. 3、Accurate Positioning: The aluminum gold detector is equipped with premium remote search system and accurate positioning detection system, which breaks through the traditional detection method. 4、Efficient: The silver detector adopts microcomputer control chip unit calibration, can quickly and easily scan and detect, greatly improve the work efficiency and reduce testing labor. 5、Suitable: The bronze detector adopts advanced and practical testing method, suitable for detecting gold, silver, bronze and other metals. 1 x Metal Detector 1 x Receiver 6 x Antenna 1 x Charger Adapter 1 x Plastic Box 1 x Use Manual  Item Type: Metal DetectorMaterial: AluminumWeight: Approx. 2943g/ 6.49lbColor: Blue Size: Host: Approx. 31.3x 16.5cm/ 12.32x 6.50in Emitter: Approx. 11.5x 7.5cm/ 4.53x 2.95in Range: 1000 MetersDepth: 20 MetersHost Battery: 1600mah AAA NiMH Rechargeable Battery (Delivered with Built In Battery) Emitter Battery: 1200mah AAA NiMH Rechargeable Battery (Delivered with Built In Battery) Transmission Frequency: 5.6-6KHzSignal Frequency: 360-440hzDetection Type: Gold, Silver, Copper, GemCharging Time: 10-12 HoursPurpose: Metal Detection