Automatic indicators of low pressure in vehicle tyres; Cinematographic cameras; Electric door bells; Electronic collars to train animals; Headphones; Portable media players; Radios; Scales; Smartglasses; Smartphones; Smartwatches; Telescopes; Temperature indicators; Theft alarms; Thermostats; Transparency projection apparatus; Voltage regulators for vehicles; X-ray apparatus not for medical purposes; Electric navigational instruments; Ultrasound probes, not for medical use