Lelo Sona 3 Cruise Clitoral Vibrator - PlumSenSonic technology sends sonic pulses through the silicone mouth rather than concentrating vibration at a single point, so the sensation spreads across more of the clitoral area and feels noticeably broader and more enveloping than direct buzz. Cruise Control technology keeps the intensity level consistent even when the mouth is pressed firmly against the body. Press harder and the output holds steady, rather than dropping off under pressure.