Small in volume， light in weight and convenient in carrying.<br />Operation of the product is simple， low power consumption.<br />Can display the SPO2 and PR.<br />Low-voltage indication: low-voltage indicator appears before working abnormally which is due to low-voltage.<br />Automatically power off function: when the device is under the state of measuring interface. it will automatically power off within 5 seconds if the finger falls out of probe.<br />No Color choice，we sent it at random<br /><br />Package Includes:<br />1 * Fingertip Oxymeter<br />1 * Hanging Rope<br />1 * Storage Bag<br />1 * User Manual