- Traditional Chinese Character(HanT):
哀鳳21
- Simplified Chinese Character(HanS):
哀凤21
- Bopomofo(Mandarin Phonetic Symbols): ㄞ ㄈㄥˋ ㄦˋ ㄧ (ㄞㄈㄦㄧ)
- Bopomofo(Zhuyin Keyboard Input/IME): "9 z/4-4u " (9z/4-4u)
- 「哀凤21」的漢語拼音: Ai1 Feng4 Er4 Yi1
- (ASCII) Hanyu Pinyin: "aifengeryi" "Ai1Feng4Er4Yi1" "Ai1 Feng4 Er4 Yi1" (AFEY)
- (Latin) Hànyǔ Pīnyīn: FèngèrYī [ Fèng èr Yī ]
- (英文翻譯) English Translation: "iPhone 21"
- (西語翻譯) Traducción Español: "Ai Feng 21"
- (日文翻譯) 日本語翻訳: "アイフォン21"