The MALLORY SONALERT part MSR516NR is an audio signaling device designed for applications requiring a compact, low-power solution. It operates at a voltage range of 5VDC to 16VDC, drawing a low current of 14mA. With a sound output of 88dBA/96dBA, it provides a loud and clear acoustic signal. The frequency range of this device is 3000Hz to 4000Hz, making it suitable for various auditory alerting needs. It features a pin-through-hole design for easy installation and reliable connections.