The oximeter is small in size, light and easily portable, has a low power consumption and the two AAA batteries can work continuously for 30 hours. The device turns off automatically when it does not receive signals for more than 8 seconds, it is also equipped with a color LED display to monitor blood saturation, heart rate, pulse graph and prefusion index. The object is exactly the one represented in the photos and described in the announcement, it is new with 2 Years Warranty, coming from our physical store, and is accompanied by a receipt or tax invoice. The tax invoice must be requested in the order notes or with a message immediately after the purchase. All our national and international shipments are made with SDA and Poste Italiane courier. Wanting to offer the best possible servic.