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 exploring environmental phenomena, providing a user-friendly and reliable set of tools for both beginners and experienced users. 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 five-light LED display provides visible measurement values, allowing you to monitor magnetic field status at all times, 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 o 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 is embedded with 51 UV LED lights, providing a broad irradiation area. Ideal for outdoor adventures, inspection tasks, and household use, it is a versatile tool for detecting stains, verifying materials, or identifying certain minerals. To install, simply unscrew the bottom, remove the battery assembly, and insert batteries (batteries not included). This equipment kit is straightforward and user-friendly, suitable for those beginning in environmental field studies as well as enthusiasts looking to expand their toolkit. 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 allowance is +/- 1–3 cm.