Precision cutting system with dual ring shaving heads;optimal contour adjustment with 3 spring-mounted shaving heads;with sdditional 2 in 1 beard and sideburn styler;battery or mains operated with direct drive funtion*foldable shaving head unit for cleaning under runnng water;operating time:approx.60mins（full charged 90 mins);LED display with charge indicator(0-99%)practical locking function for transport,when travellingwith cleaning brush,shaving head cover,power cable and travel case,usb cablecharging time:90 minutesrechargeable Li-ion battery:5v,1000mah