AUTO-CUT: The oximeter automatically powers off after 10 seconds of inactivity and can be operated continuously for more than 20 hours.SUITABLE FOR SPORTS: Suitable for mountain climbers, skiers, bikers, aviators or anyone interested in measuring their SpO2 and pulse rate while on the move.SUITABLE FOR ALL: Our simple & ergonomic blood oxygen monitor accommodates all finger sizes, so both kids and adults can use it. A perfect blood oxygen saturation monitor for ages 3 and above.99.9% RESULT ACCURACY : rotatable multidirectional display, allows you to view your results in any direction plus pulse wave, pulse rate, bar graph, spo2 level and battery level.LOW POWER CONSUMPTION : Automatically power off after 8 second no operation, with 2 AAA batteries (NOT include) could be continuously for more than 25 hours.