Upgraded Rechargeable Cordless Design- (The TOUCH SCREEN IS NOT SCRATCHED, it has a protective film)Built-in 15600mAH lithium battery,our rechargeable gel nail lamp equipped with new professional designed LED dual light source, 1-3 days continues working time after 6 hours charging. You can take it anywhere without the extension cord.Please Do Not Use When Charging. The Charging Time Should Not Exceed 6 Hours^ Harmless Wavelength and Overheat Protection- Differ from traditional nail lamps, weve already pioneered the dual optical wavelength(365nm+405nm) lamp beads,safe on your skin and eyes and prevents your skin from getting black. Moreover, built-in heat dissipation design prevents machine from overheating and extends its lifespan.^ Adjustable LED Screen &Smart Sensor-We use LED Touch Screen instead of old fashioned button, The time display screen can be adjusted which is convenient for manicurists and customers.4 time selection with time memory function,30s/60s/99s/120s Low Heat Mode(Curing time is effected by nail polish varieties), infrared induction when hand in & hand out makes you the most attractive and coolest presence whether you use it at home, salon or friends' parties.^ Gorgeous And Spacious Design- Regardless of the size of your hands, your feet, nail dryer is large enough to treat five fingers or toes at once. The detachable base can be removed for cleaning and easy pedicure use. PLEASE TEAR OFF the PROTECTIVE PLASTIC FILM over the display screen before use,We recommend^ Premium Materials - Gel Nail Lamp is made of premium anti scratch Engineering ABS which is sturdy and healthy. It works well with all kinds of LED gel nail polish, including base coat, soft/hard gel, acrylic, builder, sculpture gel and so on.Free returns for 30 days, 1 Year Warranty, Please feel free to contact us if you have any questions^