| 摘要 |
A hand held mobile telephone (1) is disclosed comprising a front face (3) having a plurality of openings therein, and a plurality of keys (7-13) each having an upper surface bounded by side walls. Each key (7-13) protrudes from one of the plurality of openings to provide its upper surface for tactile actuation by a user. The telephone further comprises an underlying switching element and means for coupling the tactile actuation of the upper surface by a user to the switching element. One of said plurality of keys has a vertex, in the boundary of its upper surface, indicative of the location for tactile actuation.
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