Frequently asked questions

You order by email, and we confirm the price and delivery estimate in writing. In-stock orders ship within 24 hours, and we usually deliver in 2-6 days. You’ll receive tracking by email when your package leaves our warehouse.

Etherna uses proprietary, patent-protected technology. See the Patent Notice in our footer for status and details.

Check airline and country rules for electronic devices with lithium-ion batteries. Generally, lithium-ion batteries go carry-on only, not in checked baggage.

Etherna comes with a one year warranty against manufacturing defects and bad parts. For full details please see our Warranty Policy for coverage and claim steps.

We offer a 30-day return window on eligible items. Orders can be canceled before shipment for a full refund. See Shipping & Returns for full details.