a honeybee, often used in a diminutive or endearing context

花园里有许多小蜜蜂在采蜜。

a hardworking person, especially one who is constantly moving back and forth to complete tasks

他在办公室里就像个勤劳的小蜜蜂，一刻也闲不下来。

a portable amplification system consisting of a headset microphone and a wearable speaker

老师戴上小蜜蜂后，全班同学都能听清讲课内容了。