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 exploring environmental phenomena, providing a user-friendly and reliable set of tools for both beginners and experienced users. Uncover hidden electromagnetic radiation with the included detector, which 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 five-light indicator system provides visible measurement readings, allowing continuous monitoring of field strength, even in low-light conditions. The portable radio is compact, easy to carry, and features high reception sensitivity. It responds quickly to signal changes and delivers clear audio output through the built-in speaker. The radio's reception range is 87.5–108 MHz, and it is equipped with an antenna for improved performance. The UV flashlight features 51 UV LED lights, delivering a broad irradiation area. Ideal for outdoor use, inspection tasks, and household applications, it helps reveal stains, verify materials, or identify certain substances. To install batteries, simply unscrew the base, insert the required batteries (not included), and reassemble. This equipment kit is straightforward and user-friendly, suitable for individuals interested in environmental field detection and scientific exploration. Color: As shown Material: Metal + Plastic Package Contents: 7 pcs x Detection Equipment Note: Light reflection and different display settings may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1–3 cm.