It is intended to provide compositions for external preparations which are excellent in the skin permeability of the active ingredient, make it possible to give a compact preparation size and exert relieved skin irritation in percutaneous preparations, etc. More specifically, memory and processing intensive tasks such as syntax checking are done at the host, while security-critical tasks such as cryptographic verifications are done at the electronic device. The controller is also configured to operate the sound machine module to provide sound in response to a sound input to the user interface. The circuit outputs the program voltage so as to satisfy the following formulae, in the case of repeating an output of the program voltage n times, when the program voltage in the k-th output is set to Vpgm, a constant voltage is set as \u0394v1, a time in which the k-th output is continued is set to Tpgm, and a constant time is set as \u0394t1.