It includes 1 portable radio (battery included), 1 EMF meter (battery included), 1 UV flashlight (batteries not included), and 4 LED light-up pet cat balls (batteries included). This comprehensive kit is designed for detecting electromagnetic fields and providing illumination, ensuring a user-friendly and reliable set of tools for various applications. Unveil hidden electromagnetic radiation with the detector, which can detect frequency ranges from 50Hz to 20,000Hz, providing a wide spectrum for field detection. With dual-use functionality, it measures both electric and magnetic fields simultaneously. The visible five-light indicator 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 FM frequency range of 87.5–108 MHz, delivering clear o output through the built-in speaker. It is equipped with an antenna for improved signal reception. The UV flashlight features 51 UV LED lights, offering a broad irradiation area. Ideal for outdoor use, inspections, and household tasks, it helps reveal stains, minerals, and other substances that fluoresce under UV light. To install batteries, unscrew the bottom cap, remove the battery compartment, and insert your batteries (batteries not included). This equipment kit is straightforward and user-friendly, suitable for both beginners and experienced users interested in environmental detection and exploration. Color: As shown Material: Metal + Plastic Package Contents: 7 pcs x Detection Equipment Note: Light reflection and differences in display screens may cause slight variations between the color of the item in the image and the actual product. Measurement error allowed is +/- 1–3 cm.