NMB Technologies MAP DC Brush Motors With Micro Air Pump features a simplified pump structure. These NMB Technologies MAP DC brush motors feature low-cost pumps by reducing the number of parts and the number of assembly man-hours. The DC brush motors operate at a 5V to 7V voltage range for MAP-AM-265 and a 2V to 3.2V voltage range for MAP-HD-140. These MAP DC brush motors are ideally used in blood pressure monitors for home appliances (for the wrist and upper arm).