1.Multi-function 2.Superior Performance, 3.Elegant Appearance, 4.Easy Operation,Security,Reliable 1.Multi-functionWidely used for the ... . Long service life of battery A full charge battery can be continuouslyused 5.5 hours. Battery uses solid-state, maintenance ... gun (mist spray, washing), easy operation, flexible adjustment. 5. Security & Reliable Compare with the traditional back-pack spraying ...