The suona (simplified Chinese: 唢呐; traditional Chinese: 嗩吶; pinyin: suǒnà); also called laba (Chinese: 喇叭; pinyin: lǎbā) or haidi (Chinese: 海笛; pinyin: hǎidí) is a Han Chinese shawm (oboe). It has a distinctively loud and high-pitched sound, and is used frequently in Chinese traditional music ensembles, particularly those that perform outdoors. It is an important instrument in the folk music of northern China, particularly the provinces of Shandong and Henan, where it has long been used for festival and military purposes. It is still used, in combination with sheng mouth organs, gongs, drums, and sometimes other instruments, in wedding and funeral processions. Such wind and percussion ensembles are called chuida or guchui.