Vibration/USB rechargeable battery] ##Smaller is better than bigger. Handy electric massager with intense shaking! ##Super shaking in spite of its small size! Powerful enough to make you cum. High-performance powerful motor built into the head###7-pattern vibration###waterproof###high-quality silicone###flexible and bendable head##*Battery: [Weight g] 8.4 [Power W.H] 1.48 [Voltage V] 3.7