Veridian Pinnacale Series Stainless Steel Stethoscope, Blue, 1 Case of 50 CompleteMed Provides a breathable barrier that Wall Transformers Provides a breathable barrier that lets air in while keeping moisture out SUCTION PUMPS * AC DC Battery System * Easy to read built in regulator and vacuum gauge for quick accurate adjustments * High performance capabilities up to 555 mmHg vacuum and 27 lpm flow * Convenient 800cc single patient use cannister for easier cleaning and less costly replacement * Small lightweight design * Universal AC power * 12V DC operation with included cigarette lighter cord *Includes all of the above features plus portability with built in battery * Padded carrying case * Battery operates up to 1 hour when fully charged * extra diaphragm Color coordinated non chill bell ring and diaphragm retaining ring provide added patient comfort