With A Firmer Material Than The Original Flip Zero Ev, The Vibrating Flip Zero Ev Black Offers Stronger Sensations And A Tighter Squeeze. Enjoy The Most Dynamic Rumbling Stimulation Available With Internal Details Refined To Match The Intense Sensations Of The Firmer Material, And The Dual Vibration Cores' Rumbling Stimulation! Running Time: Approx. 40Min (Full Power). Charging Time: Approx. 90Min. Waterproof Up To 19.5'' (Charging Base Not Waterproof) Materials: - Case & Slide Cap: Pc :: Internal Sleeve: Thermoplastic Elastomer (Tpe) :: Product Body: Pp, Silicone, Abs, Li-Ion Polymer Battery (Li-Poly) :: Charging Base: Silicone, Abs Insertion Length (Inches): 6.70, Insertion Width (Inches): 2.00, California'S Proposition 65 (Slide Arms, Hard Plastic)