The ORA Electric Microneedle Derma Pen System takes the guesswork out of microneedling by producing controlled, precise needle strokes faster than a traditional roller. What makes this pen stand apart from the rest is the adjustable needle head (varying in length from 0.25 mm to 2 mm), and the built-in vibration mechanism that provides deeper needle penetration. 5 adjustable speeds AC Adapter and wall charger 2 replacement needle tips Also includes a pack of replacements heads I purchased.