18500 lithium battery replaceable
Voltage can be adjusted by different angle
Switch between liner and shader two modes
LED screen (faster and more clearly to show voltage)
Grip adjusts Needle protrusion length (not change screen location)
-Motor: AVA Metal Brushless DC Motor
-Motor Speed: 11000rmp, Power Intake: 5W
-Stroke: 3.5mm, Needle Protrusion: 1.5-5mm
-Battery Type: 18500 Lithium-ion, Battery Voltage: 3.7V
-Rated Capacity: 1900mAh, Charging Input: 5V/1A