Experience Up to 3 Times the Vibes and 3 Times the Fun with the Fukuoku Power Pack. The Fukuoku Power Pack is a non cumbersome, wrist held massager with multi speed Power Pack that is expandable from 1 to 2, or even up to 3 Fukuokus at Once! Plug in all 3 Fukuokus and receive an astonishing 25,000 vibrations per minute! Uses 3 AAA Size Batteries included! Fukuoku Power Pack