Iroha Mini Ume-Anzu Palm Size Massager from Tenga. From the makers of female self care brand Iroha comes a new, little friend! Smaller that the palm of your hand, this delightful little toy provides portable pleasure; in the bath or in the bedroom, it will always be by your side. Bringing intimate pleasure closer to you. The Iroha mini runs on a single AAA battery. There is one free tester battery included with the product. The Iroha mini is a simple one speed vibrator; simply press the power button to turn it on and again to turn it off. Materials Thermoplastic Elastomer TPE, ABS plastic. Size 1.34 inches in depth by 2.05 inches in width by 2.4 inches in height. Video.