The Iroha Zen brings Iroha's unique Soft Touch Silicone to everyone in a new refined, portable, battery powered body. Rows of pleats adorn the outer silicone, with a long shape that's easy to hold. Simple one button control cycles through 3 vibration strengths and one pulse pattern. With the Iroha Zen you can touch, twist and tease for a variety of sensations. It is fully waterproof for both use in the bath and easy cleaning. The Iroha Zen helps bring a moment of relaxation closer than ever before. Materials Silicone, ABS plastic. Running time approximately 4 hours at maximum strength. Battery powered 2 AAA batteries. Includes tester batteries. Waterproof up to 19.5 inches. Product size width 1.3 inches by depth 1.3 inches by height 5 inches. Warranty period 90 days.