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Jyutping haau1 gei1
Pinyin kǎo jī

Definitions (Wiktionary)
  1. noun, Mainland-China, Wu
    pager (device)
    (syn.) call機, BB機, 尋呼機 Mainland China, BB Call, 呼機仔, 拷機, 叩機, 傳呼機, 呼叫器, 電蛐蛐兒, 電蛐蛐, BP機, 呼機