Model: P2-E Portable Oxygen Concentrator Size: 221 x 85 x 160mm Weight: 1.98kg (4.37lbs) Warm-up Time: 2 minutes Oxygen Flow: Size: 221 x 85 x 160mm Weight: 1.98kg (4.37lbs) Warm-up Time: 2 minutes Oxygen Flow: 1 - 5 flow level (Pulse Mode) Oxygen Concentration: 90% - 3% / +6% AC Power Supply AC Input: 100-240V, 50-60hz - 100w DC Power Supply: 12v Car Charger Plug Noise Decibel: <60dB Display Screen: 2.8 inch Battery: 6800mAh 2 Year Warranty for Machine 1 Year Warranty for Battery, Molecular Sieve *BATTERY DURATION: Pulse setting 1 = 3h 40mins Pulse setting 2 = 3h 20mins Pulse setting 3 = 2h 54mins Pulse setting 4 = 2h 14mins Pulse setting 5 = 1h 50mins Based on 20 BPM. Actual duration results may vary. Battery duration times are based on new, fully charged batteries. FAA Approved for Air Travel The Kingon P2E Portable Oxygen Concentrator is lightweight, has sleek design, and battery life for up to *4 hours without having to recharge. It also has a high O2 concentration of 90% – 3%/+6 on all settings means you’re getting the most out of your oxygen therapy. The package comes with 1 Nasal Canulla, 5 Extra Filters, 1 Lithium Ion Battery, DC Car Adaptor, AC Power Adapotor, Carry Bag, Manual