... Therapy System NV-969 Rechargeable Auto Microneedle Therapy System 1. Functions : It is an electronic, ... needle, with guides that adjusts needle length, disposable needles, rechargeable batteries, and wireless hand piece. It is hygienic, convenient, and safe.The ... areas, and lessens the pain. FeaturesThe product is automatic and rechargeable. It is easy to use, and also safe to use ...