Аннотация: (English) This article presents the development and technical characteristics of the X-Finder metal detector, a next-generation wireless device that represents a significant technological breakthrough in the field of geophysical instrumentation. It is designed for detecting metallic objects in soil—such as coins, jewelry, artifacts, and tools—as well as for critical tasks like demining. Based primarily on a patented invention (utility model patent UA 156684 U, issued on July 24, 2024), the device features a frame-shaped sensor with crossbars, a telescopic rod, and wireless Bluetooth communication between the sensor and the control unit, eliminating the limitations of traditional wired systems and enabling continuous data transmission over several meters with the possibility of extension. Key innovations include advanced signal processing methods for noise suppression (0–30 levels), signal amplification (0–15 levels), and visual representation of detection data using hodographs and sinograms, outperforming modern analogues in both accuracy and speed of analysis. The scientific novelty and technological breakthrough lie in the integration of wireless communication with real-time signal analysis algorithms, including adaptive filtering (FIR filters with dynamic coefficients) and phase demodulation for VDI calculation (ranging from –88 to +88). This ensures enhanced portability (total weight 1140 g), detection depth up to 1 meter for large targets (compared to typical 30–45 cm in standard wireless detectors, as confirmed by industry data), and precise material discrimination, reducing false signals by 40% in mineralized soils. Experimental validation, based on standardized testing protocols [№ 23-0121-01 of 02.10.2023 and № RSHD20022], confirmed compliance with Ukrainian technical specifications [TU U 26.5-3012318215-001:2023] and international standards [7, p.9; DSTU EN 60335-1:2015 for safety and DSTU EN IEC 63000:2020 for environmental compliance]. This work contributes to the field of geophysical instrumentation by improving user ergonomics and detection accuracy in non-invasive archaeological and search applications, as well as in demining operations, paving the way for integration with AI and 3D visualization in line with global trends of 2024–2025, such as multifrequency scanning and smartphone connectivity.