Features: This Voice Playback Module delivers high quality auditory output with wide dc9-24v compatibility, easy installation for seamlessly integration into DIY electronics or industrial automation projects. This sound board supports multiple auditory and features adjustable voice controls, ensuring clear voice reproduction for diverse technical applications. Ideal for electronics enthusiasts, robotics developers, and innovators reliabled voice broadcast solution for prototyping intelligent devices, educational tools, or interactives installations. Perfectly suited for embedding in voice activated home automation systems, industrial warning alarms, language learning gadgets, or public announcement equipment requiring stable voltages adaptability. Its low power designs and interferences resistant circuitry guarantees uninterruptedly performances, versatiled for both hobbyist experiments and professional hardware development. Specifications: Size:about 76x58mm/2.99x2.28in Support: DC9-24V Package Includes: 1PC RO 1852 Voice Playback Module note: Due to problem of lighting effect there will be certain tolerances in product, please understand. Please allow 0-1cm error due to manual measurement.