With the Piston Thruster, it's all about the back-and-forth stroke to deliver the real feel of a hard poundin' Top. With a stroke of just under 2 inches, the Piston Thruster nearly matches the stroke of big pleasure machines. The super charged engines of the Piston Thruster deliver the power to drive deep. We made sure it's strong enough to penetrate the tightest holes. The mushroom-shaped head is super soft n' cushy, for EZ entry. Controlling this power top is easy… use the remote or the buttons on the balls. You have 2 speeds of pleasurein', which offer slightly faster versions of the basic stroke. Unlike traditional pleasure machines, ours also offers 8 vibration settings. Powered by a state-of-the art lithium battery, the run time is around 45 minutes. USB rechargeable, and it takes about 1.5 hours to recharge. Made of Premium Liquid Silicone, so you can use any lube. While the Piston Thruster is not whisper quiet, we felt that an engine with a little roar was essential to deliver the thrust that piggy holes crave.