Everything in this machine is way beyond your imagination. The design reproduces the motion of real human bodies and the great performance in an upward and downward motion. To shift from machine-ish motion and reproduce human-like motion, we innovate the Rail Position System. It can let you experience the real orgasm as if you have it with flesh-and-blood. To make A10 Piston SA more powerful and comfortable, The recoiling control unit is installed. As the torque motor is controlled by the unit, you can enjoy powerful piston action without any discomfort. The only thing you need to do is place your hand lightly to hold it. The first motor controlling system from VORZE Thanks to the motor controlling system that releases a load of the torque, the torque can show great performance at the range of super slow speed to medium speed. It feels like you are stroked by real human hands. You can enjoy synchronizing the A10 Piston SA with videos connecting wirelessly through your computer and smartphone. VR is also available via this system. It can provide you with endless joy. Control the SA series wirelessly. Control any SA product with Vorze Controller installed on your smartphone. You can install it through Google Play, Amazon and App Store. For iOS, you only can sync with Bach smart. Operating Environment Android 4.4, iOS 7.0 and above, Bluetooth 4.0 Maintenance Since the 6 pins have plastic flames to keep their shape, it is easy to install the inner sleeves in the main units. Also, the EJECT button allows you to remove it easily.Length: 14 InchesWashing: Hot soapy water and toy cleanerInsertable: 7 to 8 inchesFlexibility: VeryFor Who: MaleFeatures: Reproduces the motion of human bodiesMaterial: Realistic FeelBrand: R1 Rends SeriesPower: USB RechargeableSize: 14 Inches