Product description Specification: Condition: 100% new Item Type: Microneedle Pen Material: ABS Product function: introduction of serum, pore reduction, skin repair Needle head type: spiral mouth interface Product gear: 5 gear adjustment Power supply: USB charging Input voltage: 5V Applicable scene: home, beauty salon Battery type: 14500 lithium battery Battery capacity: 800 mAh Use of nanometric microcrystals: 1. Cleanse the face. 2. Apply the serum of the imported product to the pieces to be processed. 3. The operating time of the nanometric crystallite is approximately 10 to 15 minutes. It is recommended to work carefully the first time you use it and check the time for about 10 minutes (just stick it on the place to be finished, do not press it too hard). During operation, the same part should not exceed 3 seconds and should move back and forth 3-5 times. 4. After the nano-microcrystals operation, you can apply the imported serum to the skin to be absorbed, and just apply the repair mask directly. Package list: 1 x main motor 1 x USB cable 2 x microneedle heads Ingredients default