Buzzer which adopts acute Angle segment， greatly enhance sharpness. 4 replaceable hairpin， adjustable 4-6 mm， 7 -- 9 mm， 10-12 mm. 16 to 18 mm.

Intelligent LED display， accurate display power， make you more easily grasp the using and charging time. This machine adopts two pieces of 1500 ma battery， can cut about 150 minutes， 3 hours， fast charging， charging time just 3 hours， enough electricity can be continuous use about 75 minutes at a time， and can be an external chargers for connecting the mains supply， can be used directly in charge.