1)2 in 1 ,car vacuum cleaner with car air compressor 2)ABS or PP plastic housing 3)Voltage:DC12V ... tighten in a clockwise direction.2, insert the 12V cigarette lighter plug in the car cigarette lighter.3, switch ... to switch to the "OFF" position.4, in a counterclockwise direction will air pump nozzle, loosen, pull ... every 15 minutes, it is best to take a break; · only available for 12V cigarette lighter ...