It is spoken around the Guangxi–Guangdong border, and includes the dialects of Yulin and Bobai.

The reason for the claim is that Bobai makes a four-way tonal distinction in checked syllables, whereas most other Yue dialects have three.

Many Yue varieties exhibit a "changed tone" with some semantic content.

Such tones occur in the Yulin dialect, in checked syllables only, marking diminutives.

In such cases, the final stop -p, -t or -k is changed to a homorganic nasal -m, -n or -ŋ, respectively, and the pitch contour is also altered.