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The model number is laser-etched onto the backside of your Hatteker handle (e.g., RFC-690, RFC-588, RFC-598, RFC-5618, HT-6136, RSCW-767).

Yes, our devices connect to any standard 5V 1A/2A USB-A or USB-C wall adapter, laptop port, or car charger.

Snap off the blade head, brush out trapped hair with the cleaning brush, rinse with warm water, dry thoroughly, and add 2 drops of lubricating oil before snapping the blade back on.