Iroha Mikazuki has a thin, crescent shaped design. Created for first-time users. Inviting softness, delicate smoothness. Unique soft-touch silicone. Easy to clean. Waterproof up to 20 feet and featuring an anti-dust coating for pleasure with peace of mind. Flexible, bends gently. Size (L à W à H inches): 6.97 à 1.50 à 1.06. Vibration Settings: 3 Speeds, 1 Pattern Materials: Product - Body safe Silicone / Button Pad - ABS / Li-ion Polymer Battery (Li-Poly) Other Specs: USB Rechargeable. simple to charge by placing it in its case. Close the case to begin charging. Running Time: Approx. 60min (Full Power) Charging Time: Approx. 120min Waterproof up to 20" One Year Manufacturer Warranty.