Usb Rechargeable And ReusableYou can charge this windproof Lighter with a standard micro USB cable in any devices that compatiable with USB port,like computor,laptop,power bank, and adapters etc.Since it doesn't contain any dangerous fuel it's alsoairport safe.also that you dont have to worry about harmful chemicals. Fingerprint IgnitionThe New Generation Of Dual Sided Lighter Comes With Touch Induction To Ignite. You Don't Have To Use Your Fingers To Press The Button , You Just Need To Touch It To Ignite , More Easy , Fast And Convenient To Ignite. The TraditionalLighter Will Need You To Press The Ignition Button All The Time To Ignite.Unique, offers a classic look with a modern twist while being ultra-slim, compact, portable, fits well in your hand. Windproof, Reliable & SafeNo butane/gas is required,Ignition Is Safe, Environmentally Friendly, Lightweight, Compact, Smart Chip, Fast Charge, Wind And Weatherproof,No Longer Wake Her Up In Sleep, Give You A Quiet Moment Of Cigarettes,Think abouthow cool this is in front of others. Battery IndicatorThe Upgrade Version Of Electronic Arc Lighter Comes With Battery Capacity Indicator, It Has Four Blue Dot To Represent The Battery Capacity. It Will Remind You When You Lighter Needs To Charge At Anytime. Useful And Convenient, TheTraditional Lighter Will Tell You That You Need To Charge It When The Arcs Goes Out.