Maximum safety and flexibility. You can charge your HEINE BETA4 USB Handle with any USB plug or other USB power source, with absolute peace of mind.
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The integrated, exclusive Galvanic Separation Module protects the handle, and the user, even if a faulty or inferior plug is used, preventing the possibility of the full mains voltage flowing directly to the handle.
This prevents the full supply voltage from being fed directly to the handle. However, we do recommend using a medically approved power supply.