Discover the fascinating world of directional sound with this Parametric Speaker Experiment Kit – a unique DIY tool for audio innovation, science projects, and ultrasonic acoustic research. Using ultrasonic modulation technology, this kit enables narrow beam audio projection, allowing sound to be heard only in specific zones. It’s perfect for experimenting with invisible audio paths, directional alerts, or interactive exhibits. Directional ultrasonic speaker module. Includes all essential components for quick setup. Ideal for students, creators, and acoustic researchers. Powered via standard USB – no soldering required. Whether you’re exploring parametric acoustics or creating a futuristic interactive project, this kit offers hands-on insight into next-generation sound technology. Made for curiosity-driven minds. International Buyers – Please Note. Thank you for your understanding.