Dermapen, Derma Pen, Microneedle Pen, Dr Pen, Derma Stamp Derma pen for eye is automatic and cord charging. It is easy to use, and you don`t have to buy a new one every time. Just replace the needle. Needle length is adjustable from 0.25mm to 2mm according to the areas and purposes of the treatment. It is more convenient to treat narrow area such as nose, around eye or mouth. Also, the vibration speed can be controlled. Adapter: 4.2V, 500MA. Vibrating frequency: 6500-9500r/m. Net Weight: 56g. Size: 15x3cm. Needle length: 0.25mm to 2.5mm adjustable. Package size: 20x18x6cm Auto Dermapen Microneedle Electric Dr Pen Supplier Vano Technology Industrial Limited No.5, Hongxing Industry Park, Guangzhou, China sales@ChinaBeautyMachines.com, www.ChinaBeautyMachines.com