Siena vibrators are 100% waterproof and feature ten functions, easily controlled using the ergonomic buttons. The designs are unique and the motor is what really help you sell this product through. Turn it on and you?ll experience really strong, but almost totally silent vibrations! The Concerto is an ideal all round massager, suitable for internal and external use. Its gentle curves and streamlined body make it a perfect choice for beginners and its deep ryhthmic vibrations should appeal to more seasoned users too.