Functions:Ultima A1 effectively solves the skin problems below, provides you new skin as a baby: 1. Acne Scarring 2. Stretch Marks 3.Hyperpigmentation & Melasma 4. Sun damage 5. Overall Skin Texture & Tone 6. Hair loss & AlopeciaSpecification:1. Package size:170MM X 130MM X 60MM2. Power Supply:AC/DC3. Input: AC100-240V 50/60HZ4. Output: 5V 1.5A5. Product Material: Aluminum Alloy6. Package Material: Color BoxProduct Feature:1. This derma pen has two working modes, can be wired or wireless working. 2. This derma pen has 2 rechargeable batteries, 8 hours working time. 3. This derma pen is made of high quality aviation aluminum alloy, very beautiful in appearance. And it is light weight, very easy to operate. 4. This derma pen adopts the latest mute technology, which is the lowest noise model in the industry, with a noise level of less than 15 decibels. 5. This derma pen adopts a disposable aseptic design, which effectively isolates germs and prevents cross-infection of bacteria. 6. The needle depth can be adjusted, you can adjust it for different skin problems. 7. This derma pen has 5 levels speed, with high-speed internal motor, you can adjust the speed accordingly. 8. Function: Scar removal, large pores removal, high absorption of active ingredients, Lip, eyebrow, eyeliner tattoo.