Wearable activity trackers; Wearable activity trackers with pulse rate monitoring function; Wearable computers; Wearable speakers; Wearable video display monitors; Computer hardware; Computer firmware; Interfaces between application programs and firmware on real-time computers; Neural helmets, not for medical purposes; Acoustic control circuits; Acoustic devices

Apparatus for the diagnosis of neurological diseases; Electronic apparatus for neurological diagnosis; Electronic apparatus for neurological monitoring; Neural helmets for medical purposes; Apparatus for nerve stimulation; Apparatus for nerve location; Electrical nerve stimulators; Medical apparatus for nerve stimulation; Nerve muscle stimulators; Transcutaneous electrical nerve stimulation electrodes; Transcutaneous electrical nerve stimulation instruments; Transcutaneous electrical nerve stimulators; Acoustic coupling apparatus for use with the ear; Apparatus for phototherapy; Apparatus for producing oscillatory waves for medical application; Apparatus for producing ultrasonic waves for medical application; Electromagnetic wave apparatus for use in therapy; Electromagnetic wave therapeutic instruments; Sound wave therapy apparatus; Apparatus for medical and therapeutic stimulation of the body; Apparatus for the therapeutic stimulation of the body; Apparatus for the therapeutic stimulation of the muscles; Electrical apparatus for medical purposes for applying therapeutic stimulation to the body; Electro-stimulation apparatus for use in therapeutic treatment; Apparatus for analysing brain wave frequencies; Brain pacemakers; Apparatus for achieving physical fitness (for medical use)