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. 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 display 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 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, providing a broad irradiation area. Ideal for outdoor use, inspection tasks, and identifying certain materials, it is a versatile tool for various applications. To install batteries, simply unscrew the bottom, remove the battery compartment, and insert your batteries (batteries not included). This equipment kit is straightforward and user-friendly, suitable for those new to environmental field detection as well as enthusiasts seeking reliable tools. Color: As shown Material: Metal + Plastic Package Contents: 7 pcs x Detection Equipment Note: Light reflection and different displays may cause slight variations between the color of the item in the picture and the actual item. Measurement error allowance is +/- 1–3 cm.