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Jyutping cyun4 seng1 tung2
Pinyin chuán shēng tǒng

Definitions (粵典–words.hk)
  1. 名詞
    本身​指舊式​電話​用​嚟​聽​對​方講​嘢​嘅​部份
    speaker / receiver of an antique phone
    • 紙杯傳聲筒
      纸杯传声筒
      zi2 bui1 cyun4 seng1 tung2
      paper-cup phone
  2. 名詞
    引申​指​係​負責傳​話​嘅​人
    figuratively, a mouthpiece, someone who merely relays a message for another party
    • 佢只係個傳聲筒,話唔到事嘅。
      佢只系个传声筒,话唔到事嘅。
      keoi5 zi2 hai6 go3 cyun4 seng1 tung2, waa6 m4 dou2 si6 ge3.
      He is just a mouthpiece. He doesn't have a say.

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Jyutping cyun4 sing1 tung2
Pinyin chuán shēng tǒng

Definitions (CC-CEDICT)
  1. loudhailer
  2. megaphone
  3. one who parrots sb
  4. mouthpiece
Definitions (粵典–words.hk)
  1. 名詞
    本身​指舊式​電話​用​嚟​聽​對​方講​嘢​嘅​部份
    speaker / receiver of an antique phone
    • 紙杯傳聲筒
      纸杯传声筒
      zi2 bui1 cyun4 seng1 tung2
      paper-cup phone
  2. 名詞
    引申​指​係​負責傳​話​嘅​人
    figuratively, a mouthpiece, someone who merely relays a message for another party
    • 佢只係個傳聲筒,話唔到事嘅。
      佢只系个传声筒,话唔到事嘅。
      keoi5 zi2 hai6 go3 cyun4 seng1 tung2, waa6 m4 dou2 si6 ge3.
      He is just a mouthpiece. He doesn't have a say.
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Definitions (兩岸三地生活差異詞語彙編—Two Shores Three Places)
  1. 家電用品:臺
    麥克風、話筒、傳聲筒
  2. 家電用品:陸
    麥克風、話筒、微音器
  3. 家電用品:香
    微音器
  4. 家電用品:澳
    微音器
  5. 差異說明
    「​麥克風​」​是​源於​英文​Microphone​一詞​的​音譯​。
Examples (粵典–words.hk)
  1. Cantonese
    纸杯传声筒
    紙杯傳聲筒
    zi2 bui1 cyun4 seng1 tung2
    • paper-cup phone
  2. Cantonese
    佢只系个传声筒,话唔到事嘅。
    佢只係個傳聲筒,話唔到事嘅。
    keoi5 zi2 hai6 go3 cyun4 seng1 tung2, waa6 m4 dou2 si6 ge3.
    • He is just a mouthpiece. He doesn't have a say.