The iroha mai RURI Incorporates Kiko's Passion for the Ocean and Whales Recognizing Kiko Mizuhara's long-standing love for iroha and her understanding of the importance of self-pleasure, we invited her to collaborate with us on the development of the iroha mai, an item that provides a completely new type of vibration experience.Changing the very concept of vibrationProviding a completely new type of vibration with HapticWave® technology. Experience the unprecedented pleasure of deep resonance throughout your body.Control the intensity and choose from 10 varied and enticing sound-based rhythm patterns. Experiencing deep, resonating vibrations with the iroha mai.The first of its kind in the iroha Series to use HapticWave® technology, converting low-frequency (40-70 Hz) sound waves into vibrations with haptic technology*. Feel deeper, more three-dimensional vibrations compared to traditional motors.*Designed to provide tactile feedback through vibration and movement.iroha mai RURI Features 5 New Vibration Patterns Inspired by the Sea: 10 Sound-wave Patterns 3 Vibration Strengths: Press Button once to switch between 3 vibration strengths. Always Hygienic: Anti-dust protective coating, waterproof and washable Charging base also serves as a stand: Place the Product here to prepare before use, or temporarily place it here after use. Product Specifications Size (D×W×H inches): 1.30 × 1.30 × 6.85 Weight(oz): 3.77 Vibration modes: 10 Vibration Patterns + 3 Vibration Strengths Materials:Body: Silicone, ABS, PC, Li-ion Polymer BatteryCharging Base and Cover: PCUSB Cable: PVC Running Time: approx. 60min (at full power) Recharging Time: approx. 90min (at 5v 1000mA) Waterproof up to 20 in. Included: Charging Base / Cover / USB Cable / User Manual