Features: Complete exploration set with 4 essential tools: This ready to use package includes a phenomenon detection device, noise reducing interconnected earphones, electromagnetic field meter and soft fabric eye cover for thorough investigations without additional items. Sensitive phenomenon detection device: The compact ABS unit features a 40mm sound emitter and refined reception component to accurately detect unusual occurrences with improved sound projection for interactive experiences. Focused noise reducing earphones: These interconnected listening tools effectively reduce outside noises to clearly hear subtle sounds, providing comfortable wear and foldable design for both real time monitoring and playback analysis. Light blocking fabric eye cover: Made from gentle dark substance, this lightweight cover eliminates visual distractions to improve auditory focus during meetings, boosting sensitivity to faint sounds. Versatile electromagnetic field meter: Powered by included 150mAh coin battery, this device scans 50Hz 2000MHz ranges with 5 levels visual display, detecting both electrical and magnetic variations to provide measurable data for research purposes. Specifications: Substance:ABS Product size: lecturer diameter 40mm (particulars as shown) Built-in battery: button battery 150mAh (included) Package Includes: Manifestation catching suitx1 note: Before using the accessory, please check if it is compatible. Pay attention to the storage methods.