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 reliable performance, making it suitable for users who are new to field detection as well as experienced enthusiasts. Unveil hidden electromagnetic radiation with the detector, which can detect frequency ranges from 50Hz to 20,000Hz, offering a wide spectrum for accurate field measurements. With dual-use functionality, it measures both electric and magnetic fields simultaneously. The five-light indicator system provides visible measurement levels, 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 quickly responds to signal changes and delivers clear audio output through the built-in speaker. The radio has a reception range of 87.5108 MHz, is fully functional, and comes equipped with an antenna. The UV flashlight features 51 UV LED lights, providing a broad irradiation area. Ideal for outdoor adventures, inspections, and household use, it is a versatile tool for identifying substances, checking materials, or detecting stains. To install, simply unscrew the bottom, remove the battery compartment, and insert batteries (not included). 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 color variations between the image and the actual item. Measurement error allowance is +/- 13 cm.