<p>The present invention is to provide a remote control comprising: a casing (100) having an open backside and provided with a board receiving part (101) and a power supply receiving part (102); a board cover (200) to cover the board receiving part (101) of the casing (100); a power supply cover (300) to cover the power supply receiving part (102) of the casing (100); and a means (700) for maintaining static pressure provided either on the board cover (200) or on the power supply cover (300) to prevent inside pressure from changing, wherein the means (700) for maintaining static pressure includes a pocket (720) provided inside the board cover (200) to have a passing hole (270) in order to link the inside and the outside and provided with a ring-shaped supporter (730) thereto, a diaphragm (710) put into the pocket (720) to secure equilibrium in pressure, and a cap (740) having a plurality of passing holes (741) to be fitted to the supporter (730) by force so that the diaphragm (710) can react to pressure change from both directions.</p>
