Sound grenade, Stun grenade, Tear gas. 噪音手榴彈, 眩暈手榴彈, 催淚瓦斯

Palestinian protesters run for cover from sound grenades and tear gas shot by Israeli troops during clashes in Hebron in the West Bank. (Abed Al Hashlamoun/European Pressphoto Agency)
Why a boycott of Israel makes sense - mmc-news.com
http://mmc-news.com/news-why-a-boycott-of-israel-makes-sense-291046.dbv

An Israeli policeman fires tear gas during clashes with Palestinian demonstrators in the West Bank town of al-Ram, north of Jerusalem. The violence erupted a month ago, fueled by rumors that Israel was plotting to take over a sensitive Jerusalem holy site revered by both Jews and Muslims.
October 22, 2015
http://www.voanews.com/media/photogallery/october-22-2015-day-in-photos/3018597.html

Stun grenade - Wikipedia, the free encyclopedia

閃光彈（英文：Flashbang，Stun Grenade）又稱致盲彈、眩目彈或眩暈彈等

grenade 的中文翻譯 | 英漢字典
grenade
  手榴彈

Tear gas - Wikipedia, the free encyclopedia

催淚彈（英語：Lachrymatory Bomb，亦可視乎內含催淚劑而命名為CS Grenade或CR Grenade），亦稱催淚瓦斯、催淚氣體（Tear Gas）或催淚煙（Tear Smoke）