Measures oxygen level & pulse rate. Clear, bright high definition display. Easy to read. Comfortable silicone padding. Non-invasive, lightweight. Includes carrying case & lanyard. Includes 1 oximeter, 2 AAA batteries, user manual, lanyard, carrying case. Screen adjusts to read from all sides. For sports & recreation use. CVS/pharmacy Pulse Oximeter provides portable, lightweight measurement, a comfortable, slip-resistant fit and easy-to-read HD display to measure oxygen level and pulse rate for your daily needs. Featured benefits. Read from all sides. One-button operation. Adjustable brightness. Automatic power off. Includes 2 AAA batteries. Measures: oxygen level; pulse rate.