声囊

声囊	shēng náng	vocal sac / vocal pouch (for vocal amplification in male frogs)
声	shēng	sound / voice / tone / noise / reputation / classifier for sounds
囊	nāng	used in 囊膪 and 囊揣 / used in 鼓鼓囊囊
囊	náng	sack / purse / pocket (for money)