C.k？ What does this mean? )

C.k Calvin Klein (Eternal Men's Perfume)

EP record

Abbreviation for extended playback recording CD.

EP records are usually about five songs, not about 10 like ordinary albums.

China YN (Yingtong. China)

Among Yingtong MP3 series products, color screen MP3 is becoming more and more popular, and many brands have introduced color screen MP3. Among them, Yingtong, which has not entered the digital market for a long time, has also launched the first color screen MP3-Yingtong YN——ZIPO, which brings brand-new audio-visual options to fashion people who like video playback.