A portable wireless communication terminal having a wireless communication function and a music recording and/or replaying function determines whether the wireless communication function is to be disable or not when an user selects the music recording/replaying function. The wireless communication function is enabled or disabled based on a result of the determination. More particularly, noise interference to the music recording/replaying function is alleviated by decreasing a transmitting power of the portable wireless communication terminal by a predetermined amount during music recording/replaying operation.