mjn-neuro is a company dedicated to the design, manufacture and commercialization of medical devices with the aim of improving people's quality of life. All this activity is accompanied by an important policy of reinvestment of resources in R&I and social action. The first device that mjn-neuro is developing is mjn-SERAS: an earpiece that assesses the risk of epileptic seizures. The product consists of the earpiece and an app, which are connected to each other via Bluetooth. The earpiece is customised for each user. The main function of the earpiece is to send a warning when the risk of epileptic seizures is high. This signal is both, visual and acoustic, and alerts each user between 1 and 3 minutes before having a seizure.