The system which makes the use of the product after the trial limited period ending possible

摘要

This invention relates to the electromotive instrument. Electromotive instrument such as electromotive toothbrush has conformed to period limitation trial, but it possesses the operation function of the product of former long term use. As for the electromotive instrument, in order after the payment receiving from the user to make the long-term use of the instrument possible, it responds to the communication from the permission equipment.