Be sure to get the right size for your head! Obtain the circumference using a tape measure wrapped horizontally across the widest part of your head

• Small = 50-54cm
• Medium = 54-58cm
• Large = 58-62cm 

Size down if between sizes.

International Shipping

Please be advised that product prices do not include customs fees, import taxes, brokerage fees, or any customs clearance fees. This is the responsibility of the customer. To estimate the total import duty and tax, use this calculator. Enter the HS code 85444200 when prompted. If shipping to Europe, please expect the total cost of import to be about 25% of the product price. If shipping to other countries, it is about 10-20%.

OpenBCI ships worldwide!

Have questions about shipping internationally? Email sales@openbci.com

Refund Policy here

Disclaimer: The OpenBCI Electrode Cap is not a medical device nor is it intended for medical diagnosis and provided to you "as is," and we make no express or implied warranties whatsoever with respect to its functionality, operability, or use, including, without limitation, any implied warranties, fitness for a particular purpose, or infringement. We expressly disclaim any liability whatsoever for any direct, indirect, consequential, incidental or special damages, including, without limitation, lost revenues, lost profits, losses resulting from business interruption or loss of data, regardless of the form of action or legal theory under which the liability may be asserted, even if advised of the possibility of such damages.