The rate of mobile phone ownership in Hong Kong continues to increase. Mobile phones no longer just perform basic calls. Smartphones are able to access the Internet, play music, and take photos. To avoid over-reliance on and addiction to such gadgets, some teachers feel the need to give teenagers guidance on the proper use of this technology.香港流動電話的滲透率日益上升，反映流動電話成為香港人的必需品。它主要有語音通訊和收發短訊的功能，還可以上網、拍照、聽音樂、玩遊戲，用途廣泛，十分便利，逐漸改變香港人的生活模式。市場競爭激烈，流動電話服務費用下跌，供應商推出零機價來吸引學生這批新客源。有教師認為人們過份依賴這種工具，需要教導他們如何適當地使用。
