The MALLORY SONALERT part SBM2R is a compact and versatile audio device that produces a loud and clear sound. With an input voltage range of 1VDC to 5VDC and a low power consumption of 16mA, it is suitable for a variety of applications. This particular model emits a 55dBA sound at a frequency range of 2400Hz to 3400Hz. It features pin through-hole mounting, making it easy to install and integrate into your projects.