Conversation timer for mobile phone

摘要

A conversation timer for mobile phone includes mainly a plurality of light emitting elements (such as light emitting diodes) located at the exterior of the mobile phone visible to the user. The light emitting elements will be turned on or off successively at a preset time interval to form a cumulative lighting when conversation starts on the mobile phone for indicating accumulated conversation time duration thereby to remind and alert user from using the mobile phone excessively.