Fingertip Pulse Oximeter for children uses cartoon appearance design reducing the fear of children * Small size and lightweight design will not cause too much pressure on children's fingers * OLED screen * 4-direction display * Pule bar Plethysmogram * Parameters; SpO2 PR * Low battery prompt * Takes 2 AAA batteries (included) * 49mm L x 28mm W x 28mm H * Weight 35g (