Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
슈퍼헤테로다인 수신기는 라디오 방송을 수신하는 데 사용됩니다.syupeoheterodain susingineun radio bangsong-eul susinhaneun de sayongdoemnida.The superheterodyne receiver is used to receive radio broadcasts.