With 2 times the powerful thumping action, the thrilling Throb Flutter is made to get your pulse racing. This powerful dual stimulator massager has 2 uniquely placed thumping pads on both sides of the shaft to deliver 3 speeds of deep, rumbling thumping. A full coverage stimulator is made for knee-shaking stimulation as it shimmies to the rhythm of 7 intense functions of vibration. Embrace fully personalized pleasure with the independently controlled 3 speeds of thrilling thumping action and 7 functions of vibration. The pulsating curved tip delivers 3 thrilling speeds of thumping sensation that redefine pleasure. The easy-touch 3-button control lets you cycle through the knee-shaking settings. Recharge the premium silicone vibrator in 2 hours with the provided USB charging cable to enjoy 60 minutes of high-speed stimulation or 80 minutes of low speed vibrations. The self-sealing charging port and silicone body let you get steamy with this waterproof vibe. The hypoallergenic premium silicone is body safe, unscented and phthalate free to keep you most sensitive spots, happy and healthy.