窄頻 [－频]

Jyutping zaak3 pan4
Pinyin zhǎi pín

Definitions (粵典–words.hk)
  1. 名詞、舊式
    比​寬頻​慢​嘅​連​接​互​聯​網​方法​，​通常​指撥號​上網
    slow connection to the Internet, slower than broadband, usually refer to dial-up