POWERED BY SWISS MOTOR,MOTOR SPEED :13000/M， HIGH FREQUENCY AND HIGH POWER

– STROKE LENGTH: 3.70MM &3.2MM

-BUILT-IN DAMPING ADJUSTMENT FOR MORE PRECISE ADJUSTMENT.

-THE SOFTNESS AND HARDNESS OF THE NEEDLE CAN BE ADJUSTED FREELY TO MEET DIFFERENT WORKING NEEDS, LINER& SHADER CAN BE EASILY SWITCHED.

-EFFICIENT AND ADVANCED NEW DRIVE SYSTEM IS BETTER THAN HAWK PEN, GIVING PEOPLE THE ULTIMATE SILENT EXPERIENCE AND BEST HEAT DISSIPATION

– THE PEN SPRING CAN BE EASILY DISASSEMBLED AND ASSEMBLED IN 1 MINUTE WITHOUT ANY TECHNICAL REQUIREMENTS AND EASY MAINTENANCE.

– LOW WORKING VOLTAGE : USE HAWK CARTRIDGE NEEDLES <7.5V OTHER CARTRIDGE NEEDLE 6.5-7V