*Speed Mode:3 ranges                                        

*Output power(MAX):4W                        
*Input :5V/1A                    
*Working time:2-8H
*Speed :1th GR-2.7m/s
               2th GR-3.7m/s
               3th GR-4.8m/s                
*Battery Specification:Li-ion 18650-3.7V,print 2000 MAH, (Real1500MAH)                             *Battery installation:removable                
*Charging time:3 H
*Charging current(MAX):680MA
*Speed pattern: 1-2-3-Off 
*Charging indication:Red light for charging，Green light for full power
*USB Cable: Black,80cm, could pass 1A current
*Color:Black/White/Green/Pink/Blue
*Certificates: CE, FCC