●🎀【Use Application】: PELCAS Cordless electronic microneedle pen weight is 87g and the size is 150*20*20mm. suitable for traveling carrying,microneedle pen with large capacity, it can be charged for about 1.5H hours and can be used for 3 hours. Use PELCAS microneedle pen kit in the comfort of your own home. ●🎀【Economy & Health】:Save the money and time you spend on going to the beauty salon,PELCAS microneeding pen just need to recharge the pen and replace cartridges after every use.Frequency of use, twice a week. thin horny once a week.Each use time is within 5-10 minutes.needle length 0.25mm. ●🎀【Three Gears & Precise Scale】: The number of revolutions corresponding to the three gears: 8000-12000-16000, needle adjustment length: 0-2mm, it is recommended to start using the low gear, redness and swelling after use is normal, the next day disappear. Do not stay in the same place for 3-5 seconds during use. ●🎀【After-Sales & Warranty】:1 *PELCAS microneedle pen, 24 Pcs(10*12Pin + 10*36Pin + 4*Nano )replacement cartridges, 1 *USB charge cable,1* user manual.PELCAS provide 12 months Warranty and 24 hours customer service.If you have any questions, please let us know and we will give you a satisfactory result within 12H. ●🎀【Replacement Needle】:Cartridges are disposable, sharing cartridges with others is banned. If the vacuum packaging leaks, please do not use it and contact the customer service immediately for replacement. Please purchase PELCAS Original replacement needle.