https://de.wikipedia.org/wiki/Serben_in_der_Schweiz A NeuroImage paper about Wireless EEG with the title: «A survey of systems and studies» published in April 2023 says that 10% of the Wireless EEG devices are from mBrainTrain. To our surprise this is more than from Interaxon with only 7% which previously claimed to be the best selling EEG device worldwide: