This 'power stud' is wonderful!! At last a practical duel voltage vibe. I travel a lot from one continent to another, and never have to worry about batteries, or finding somewhere to charge a battery. I have a set of plug adaptors, so I can use it anywhere on the planet. The supply cord is long enough to reach any convenient power socket in the room. For versatility and power, this vibe wins hands down from anything else I have ever used. Ludmila, UK