Instructions:

Articulator: Lower lip

Point of Articulation: Upper lip

Manner of Articulation: Fricative: The articulator makes a narrow constriction against the point of articulation, so when the air flow goes through the oral passage, audible frication noise is created.

Voice: voiced – Vocal folds are close and vibrating.

Occurrence:
Akei, Alekano, Amharic, Angor, Basque, Barta, Catalan, Chinese (Fuzhou), Dutch (Belgian, Maastrichtian), Dahalo, English (Chicago), Ewe, German, Japanese, Kabyle, Occitan (Gascon), Portuguese, Sardinian (Logudorese dialect), Spanish, Swedish (Central Standard), Uruguayan Portunol, Zapotec (Tilquiapan).
(Source: https://en.wikipedia.org/wiki/Voiced_bilabial_fricative#Occurrence)