Twice as strong as the original, the LELO Siri 2 vibrator has a new enhanced motor, is waterproof and vibrates to music and ambient sound. Its ergonomic contoured shape directs powerful and quiet vibrations on the clitoris and labia. Siri 2 has 8 preset vibration patterns and a sound-response setting where the vibrations are controlled by the tone and beat of any sound that’s nearby. Rechargeable. Measures 3.78 in. by 1.77 in. by 1.46 in.