It includes 1 portable radio (battery included), 1 EMF meter (battery included), 1 UV flashlight (no battery), and 4 LED light-up pet cat balls (battery included). This comprehensive kit is designed for detecting electromagnetic fields and providing reliable performance, making it suitable for users who are beginning their exploration journey. Unveil hidden electromagnetic radiation with the included detector. It can detect frequency ranges from 50Hz to 20,000Hz, offering a wide spectrum for field detection. With dual-use functionality, it measures both electric and magnetic fields simultaneously. The visible five-light indicator system provides real-time feedback on magnetic field status, even in low-light conditions. The portable radio is compact, easy to carry, and features high reception sensitivity. It responds quickly to signals within the 87.5–108 MHz range and delivers clear audio output through its built-in speaker. The device is equipped with an antenna for improved signal reception. The UV flashlight features 51 UV LED lights, providing a broad irradiation area. Ideal for outdoor use, inspections, and various utility tasks, it helps reveal materials that fluoresce under UV light. To install batteries, simply unscrew the bottom cap, insert the required batteries (not included), and reassemble. This equipment kit is straightforward and user-friendly, suitable for both beginners and experienced users interested in environmental field detection. Color: As shown Material: Metal + Plastic Package Contents: 7 pcs x Hunting Equipment Note: Light reflection and different display settings may cause slight variations in the color shown in images compared to the actual item. Measurement error allowance is +/- 1–3 cm.