FEATURES: Rugged, portable and light weight Bright, easy to read and large LED numbers Accurate during motion and low perfusion Suitable for adult, Pediatrics and Neonate Lithium Ion Battery. Optional parts: 1) Reusable Finger Sensors( for Adult) 2) Reusable Finger Sensors ( for Pediatrics) 3) Resuable soft-finger sensor 4) Reusable Wrap SPO2 sensor 5) Reusable mulitsites "Y" SPO2 sensor