The Dantec Clavis handheld device for EMG/STIM-guided injections is designed to be simple and intuitive to provide accurate guidance in minimal time. Clavis can assist the physician in improving and more precisely treating strabimus, dystonia, torticollis, blefarospasm, spasticity, or vulvodynia. Clavis provides the functionality of EMG recording and stimulation with mobility and simplicity while providing guidance and monitoring for injection of medicinal products.