Description Dr. Pen E30 Device – Cordless Features: Operation: Corded & Cordless(Built In Battery) Wireless Color: Champagne gold Needle Length: Adjustable Needle length from 0.25mm to 2.5mm Speed Level: Adjustable 5 level speed control Cartridges: 3Pin, 12Pin, 36Pin, Nano Round Hold more stable, more comfortable Package includes: 1x Dr. Pen E30 (Wireless) 2x Cartridges 1x Protective Sleeve 1x Charger & Adapter