Two models for choice: M5-C: Plug-in derma pen M5-W: Rechargeable Built-in battery Adapter: US/EU/UK/AU 5 speed control All-metal shell body + Fast RPM Replaceable needle cartridge 12 needle Needle Depth: 0.25~2.5mm Function: Anti-Puffiness. Scar removal including acne scar removal or treatment. Acne Scar Removal, Acne Scar Treatment. Anti Wrinkle Treatment, Anti Aging. Hair Loss Treatment or Hair Restoration. Surgical Scar Removal. Hyper pigmentation treatment. Advantage of Ultima M5 1.Painless & No Bleeding Derma pen adopt the newest Technology to control the vibration of speed and the needle length. It much reduce painful. It can get a better treatment result according to different skin problems and it`s more comfortable when you use it on face. 2.Convenient & Easy Operation 6 different vibration speeds.0.25mm-2.5mm adjustable needle length (Adjust different vibration speed and needle length according to different treatment purpose will highly improved the treatment result. 3.AMTS Treament Auto microneedle therapy system which could treat even narrow area. Such as eyebrow,small scar,deep wrinkle around eyes,nose... 4.Safe & Sanitary & Economy The needles are consumable type. You can interchange the needle cartridge for each clients. Each needle can be used for 4-6 times according to treatment. Buy countless cosmetics? None will reverse elastin loss. Why? Because only less 10% nutrition of skincare product was absorbed. From now on, Derma pen helps you reverse it! Features: Twelve needle function: 1. automatic high speed roll(max speed(8000~16000) turn per minute), producing Twelve delivery channels. 2. various micro-needle mode to stimulate skin: a. strengthen skin to absorb beauty production, the absorbency of skin can be reach above 40 times, and improve acne scar more than 50%. b.the skin will be luster and elasticity, differ from laser or chemical substances, it is non invasive, can improve skin and enhances absorption. 3. the micro-needle of depth can be adjusted(0.25mm-2.5mm), greatly improved the treatment. Features of Twelve needle: a. five different high speed b. easier to operate in small part or radian c. more quickly and efficient than manual MTS Micro-needle d. adjustable length of micro-needles(0.25mm-2.5mm) e. Because high-speed vertical movement to reduce pain to a minimum, there is no cross-infection, using a one-time disposable needles. Product list box: Host: 1 pcs Adapter: 1 pcs Manual: 1 pcs Cartridges: 2 pcs 12 needles