SmartHeart talking fingertip pulse oximeter is a convenient tool that allows you to spot-check blood oxygen saturation and pulse rates at home or on the go. With the simple touch of a button, results are read aloud from the oximeter. Designed for children and adults, it accommodates a wide range of finger sizes. The oximeter features an auto-rotating, dual-color display, along with an automatic shut-off function that keeps the battery from being drained when not in use. It comes with everything you need to get started: pulse oximeter, storage case, lanyard, batteries, and English/Spanish instructions.