Pleasure Air Technology uses the power of air to deliver intense stimulation 14 intensity levels allow you to customize the sensations of each session Sleek design and ultra-soft silicone offer a smooth and sensual feel Autopilot function automatically switches between intensities to keep the sensations varied and exciting Smart Silence feature turns the device on only when it senses contact with the skin Waterproof construction makes it safe to use in intimate environments and for cleaning between sessions USB cable delivers a full charge in 120 minutes for a run time of up to 4 hours