A device for using user gesture to replace the exit key and the enter key of a terminal equipment, comprising a CPU module, a gesture input module, a gesture processing module, a terminal application module, a memory module and a terminal function module. This system permits the user to extract personal calls from the system, thereby preserving the confidential nature of some of these personal calls without the business having to review them to determine allocation of costs to user and business. The center lain average roughness of the film surface is 9 nm or less. The upper surface opening of the housing is covered with a key sheet.