The Digital Cordless Phone "PIET S100-S Set" was released as the telephone set supporting the PHS (Personal Handy phone System) service started this year. The user of this product can of course carry the portable unit outdoor, taking advantage of the PHS service. In addition, two portable units can be registered in the same base unit, so that you can use the two portable units as they were transceivers. "PIET" stands for "Personally I Enjoy Talking" based on the concept of "enjoying talking freely over a neat telephone on a street corner."