Yorokobi Mini Wand Massager Black from the Tuxedo Collection. Yorokobi means pleasure and it delivers just that. As classic as Japanese pearls, this timeless BFF massager will be your new favorite accessory, providing waves of vibrations to soothe your body and titillate your senses. Includes 6 LR44, but uses only 3 at a time. Battery life is about 30 minutes. Yorokobi Mini Wand Massagers are discreetly sized at 4 inches and have a flexible silicone head.