Convenience

• ideal for multi-subject data sessions
• leads secured by easy-click tabs
• washable mesh cap
• velcro cable management
• no gel required

Comfort

• adjustable chinstrap for stability and movement-artifact reduction
• conductive foam replaces hard electrodes

Signal Quality

• optimized signal quality with gelfree electrodes
• compatible with OpenBCI boards and commercial bio-amplifiers
• compatible with OpenBCI's FREE open-source software

Obtain the circumference using a tape measure wrapped horizontally across the widest part of your head.

• Small = 40-54cm
• Medium = 54-58cm
• Large = 58-62cm 

If between sizes, size down.  

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 Gelfree 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.