... Therapy System NV-969 Rechargeable Auto Microneedle Therapy System 1. ... that adjusts needle length, disposable needles, rechargeable batteries, and wireless hand piece. It is hygienic, convenient, ... the pain. FeaturesThe product is automatic and rechargeable. It is easy to use, and also ... (default) or 1.5mmBattery: Lithium Polymer (500mAh)Hand-piece size: Length 160mm, width 32mmCradle Size: diameter ...