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, ensuring a user-friendly experience for those interested in field detection. Unveil hidden electromagnetic radiation with the included detector. It 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 display indicates 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 signals within its range and delivers clear audio through the built-in speaker. The radio's reception range is 87.5108 MHz, and it is equipped with an antenna for improved signal capture. The UV flashlight features 51 UV LED lights, offering a broad irradiation area. Ideal for outdoor use, inspections, and cleaning tasks, it helps reveal stains, verify documents, or identify certain materials. To install batteries, simply unscrew the bottom, remove the battery assembly, and insert your batteries (batteries not included). This equipment kit is straightforward and user-friendly, suitable for beginners exploring environmental detection as well as experienced users 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 color variations between the item and the image. Measurement allows for a small error.