PURPOSE: A portable terminal is provided to transmit an alarm signal thereof by using various kinds of senses. CONSTITUTION: A housing(31) is fixed in an inside of a terminal body in order to transfer the impact to the outside. A first impacter(32) and a second impacter(33) have magnetism. The first impacter and the second impacter are installed in order to collide with an inner wall of the housing. A variable magnetic substance(35) interacts with magnetic properties of the first impacter and the second impacter. The variable magnetic substance includes a controllable magnetic property in order to move the first impacter and the second impacter.
