Feature: 1. Efficient and Convenient: The built in microchip can scan and inspect quickly, which can improve work efficiency and reduce the working intensity of inspection 2. Intelligent: Equipped with powerful kernel and intelligent modular operation, powerful functions, advanced and efficient 3. High Accuracy and Stable: The detector has excellent sensitivity and stability, it can respond quickly in most environments 4. Advanced Measuring Method: Support remote search system and precise positioning function, efficient and fast, this detection method breaks through the traditional detection method 5. Rechargeable Battery: Use rechargeable lithium batteries, long service life, environmentally friendly, suitable for outdoor measuring Specification: Item Type: Metal DetectorMaterial: aluminum Weight: Approx. 3174g / 111.96oz Product Size: Approx. Host: 33.5 x 16cm / 13.19 x 6.3in Accessory: 11.5 x 7.5cm / 4.53 x 2.95in Voltage: 100-240V Colour: black Measuring Range: 1000m / 39370.08in Measuring Depth: 20m / 787.4in Host Battery: 1 x 1600mAh 12V rechargeable lithium battery (battery included) Transmitter Accessory Battery:1 x 1200mAh 9.6V rechargeable lithium battery(battery included) Transmission Frequency: 5.6-6KHz Signal Frequency: 360-440Hz Detection Type: gold, silver, copper, and gems Charging Time: 10-12 hours Purpose: metal search. Package List: 1 x Plug Power Supply 1 x Host (battery included)1 x Transmitter Accessories(battery included)1 x English Manual1 x Plastic Storage Box6 x Accessory Rod