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In a more general sense, Weitouhua can refer to any variety of Chinese spoken in the villages of Hong Kong, including Hakka and rural Yue dialects. In contrast, most Hong Kong residents speak standard Cantonese, while most Shenzhen residents speak Mandarin.
Phonology
Zhang & Zhuang (2003:21-4) records the phonological systems of three varieties of the Weitou dialect spoken in Hong Kong. Following is Fan Tin's (蕃田), San Tin (in IPA).
(in Chinese) Zhang Shaungqing 張雙慶 & Zhuang Chusheng 莊初昇 (2003). Xianggang xinjie fangyan (香港新界方言 "The Dialects of the New Territories, Hong Kong"). Hong Kong: Commercial Press. ISBN962-07-1682-5.