• Compatible with magnetic charging devices with 6 mm distance between contact points. • Incorporates a smart chip that automatically adjusts voltage and current for safe charging. • Protects against overheating and overcharging, prolonging battery life. • Made with a pure copper core for stable energy conduction and a durable PVC cover. • Fast magnetic connection that facilitates coupling without damaging the charging pins. • Works with any USB wall port, external batteries, computers, or car chargers. • Suitable for cleansing massagers, electric toothbrushes, smartwatches, and other compatible devices.