- Cars or other motorized motor vehicles employing a LoJack procedure or other anti-theft units which can broadcast a radio frequency (RF) sign. The significant Electrical power fields produced by these techniques may possibly interfere While using the operation of your Handheld remote control and its power to Command stimulation. https://www.theorthopaedicandpainpractice.com/chronic-neck-and-shoulder-pain-relief-strategies-to-reduce-discomfort/