Zeebeetronics manufactures Radio Frequency Remote Control. Zeebeetronics also offers electrostatic discharge [ESD] test, measuring and control instrumentation. Radio Frequency Remote Control has operating frequency of 300 to 433 MHz. It has a digital coding between Tx and Rx for uniqueness and possesses channels up to 4 per Tx. The operating voltage of Tx and Rx is 5v. The range of Radio Frequency Remote Control is about 75 mm in the open and somewhat reduced inside structures.