窃听器 (qiè tīng qì) — listening device; bug

Definition

Examples

• 他在房间里安装了一个窃听器。
  Tā zài fáng jiān lǐ ān zhuāng le yí gè qiè tīng qì.
  He installed a bug in the room.
• 警察在办公室发现了两个窃听器。
  Jǐng chá zài bàn gōng shì fā xiàn le liǎng gè qiè tīng qì.
  The police found two listening devices in the office.
• 这种窃听器体积很小，很难被发现。
  Zhè zhǒng qiè tīng qì tǐ jī hěn xiǎo, hěn nán bèi fā xiàn.
  This type of bug is very small and hard to be detected.