Equipped with a 3.88V high-voltage platform Li-ion battery, the NB Air packs an efficient power of 5,000mAh with a maximum output of 18W in an ultra thin and lightweight body of 89g (3.14 oz). Thanks to the carbon fiber sheets and the NITECORE self-developed composite anti-torsion structure, the NB Air is not only ultra lightweight, but also durable and reliable. Besides, it features an all-round waterproofing design compliant with IPX7 and a newly upgraded touch button, ensuring worry-free outdoor use.