This advanced respiratory support device features auto-calibrating pulse technology with dual modes (Auto-Sensing/Fixed Pulse), delivering adjustable oxygen flow up to 1000mL/min. Its lightweight design (58dB) operates seamlessly on AC/DC power, while the removable lithium battery provides 1-3 hours portable use. Equipped with 1.2 m/ 1.7 m nasal tubes and universal voltage compatibility (AC100-240V/DC12- 16.8V ), it's ideal for home and travel scenarios. The intuitive interface with 5 preset modes ensures effortless operation for enhanced breathing comfort.