Namely, it can be discerned visually rather than through auditory sense or tactile sensation. Even when the mobile phone is placed inside a pocket, it can be easily sensed by oneself and others as the light from the mobile phone flows out from the pocket.
When it is laid on a floor, light flows down and spreads.
The reception of mobile phone has been newly interpreted visually than through sound.
Copyright Sang-Hoon Lee & Peclers Korea