Correct

嗡

/ wēng / 
Strokes

Definition

(onom.) buzz/hum/drone

Example

As an Onomatope

drone; buzz; hum

1
Mìfēng
蜜蜂
wēngwēng
嗡嗡
de
地
fēi
飞
  
。

Bees are buzzing all around.

2
Wēngwēng
嗡嗡
xiǎng
响

buzzing

3
Wēngwēng
嗡嗡
jiào
叫

buzz; drone; hum