监听器 (jiān) — listening device, bug, monitoring device

Definition

Examples

• 他怀疑房间里有监听器。
  Tā huái yí fáng jiān lǐ yǒu jiān.
  He suspects there is a listening device in the room.
• 警察在办公室里安装了监听器。
  Jǐng chá zài bàn gōng shì lǐ ān zhuāng le jiān.
  The police installed a bug in the office.
• 这种监听器可以收集到很远的信号。
  Zhè zhǒng jiān kě yǐ shōu jí dào hěn yuǎn de xìn hào.
  This type of listening device can collect signals from very far away.