dr pen a9 face microneedle accessories wireless microneedling device derma auto micro mesotherapy beauty machine derma needle cartridge skin

click operation : one - handed control switches and 6 speeds , more quick and easy,large scale adjustment design, intuitive and convenient; dr pen a9 suitable micro needle is configured with 12 pins ,18 pins ,24pins,36 pins ,42 pins , nano pins for different body parts mprecision scale : adjustable needle length for different skin problems,6 led gear display, the first use of lamp bar column display, intuitive visual; equipped with three-buckle treatment head, exclusive design patent shape high - performance motors equipped with high - performance motor ,.syi