Feature:1. Intelligent power shortage reminder, when there is no power, the display will automatically count down and flash from blue to dark. 2. Large digital display screen, LED display screen, clearer observation time, 30 light beads, no dead angle for curing glue. 3. Dual USB interface, can charge the mobile phone, charge the grinder, can be used with various emergency 5V appliances. 4. Large-capacity battery built-in 7800 mAh, suitable for home, nail salon, etc. Simple operation and convenient use. 5. One-key timing, intelligent induction, 30s, 60S, 99S one key timing, allowing you to adjust freely according to different curing time required by different glues. Specification:Condition: 100% Brand New Item Type: Nail Dryer Color: White Material: ABS Applicable to: Household / nail shop, etc. Built-In Battery Capacity: 7800 mAh Power: 48w Charging Time: 2h Use Time: Intermittent Use 7-10h Ultraviolet Wavelength: 365mm, 405mm Light Beads: 30pcs Working Mode: 30s, 60s, 99s intelligent painless mode Package List:1 x Nail Dryer 1 x Adapter 1 x Manual