Feature: 1. GOOD PERFORMANCE: This metal detector has high sensitivity and good stability, easy to operate, and can easily find metal objects that are useful to you. 2. ACCURATE LOCATION: With remote search system and precise location detection system, can identify specific types of metals through frequency regulators. 3. HIGH EFFICIENCY: Using microelectronic processor to control chip unit calibration and instrument self checking system greatly improves work efficiency. 4. DETECTABLE OBJECTS: Can be used to detect gold, silver, copper and some conventional precious metals (palladium, platinum), diamond, emeralds, ruby, etc. 5. APPLICABLE SCENES: The maximum search range can reach 1500 meters, widely used in military application, security inspection, archaeology, prospecting, etc. Specification: Item Type: Metal Detector Material: Aluminum Alloy, ABS Transmitter Battery: Rechargeable Nickel chromium battery 1000mAh (built in battery) Receiver Battery: Rechargeable Nickel chromium battery 1600mAh (built in battery) Uses: In addition to military applications, also widely used in security inspection, archaeological treasure exploration, prospecting Detected Objects: Gold, silver, copper, conventional precious metals (palladium, platinum), gem (diamond, emerald, ruby, etc.) Basic Parameters: Search Range: Maximum 1500 meter / 4921.3ft Detection Depth: Maximum 25 meter / 82ft Transmission Frequency: 5.6-6KHz Signal Frequency: 360-440Hz. Package List: 1 x Transmitter1 x Receiver10 x Antennas1 x Power Adapter1 x User Manual1 x Suitcase2 x Keys