The Invincible has a super-powerful 10-speed new generation F1 motor that accommodates any womans shape and is perfectly shaped to create the most intense orgasm ever experienced! The Invincible has a rechargeable battery with a magnetic USB charging port and included charger. When fully charged it will last for 60 min Its soft to the touch smooth and waterproof design is made from medical grade silicone making the Invincible easy to clean. Touchless Airwave Technology The Irresistible Collection is not just any collection of sex toys. They are the best sex toys for women in the market period! What makes The Irresistible Collection so special is that our clitoral vibrator is made from high grade silicone and is equipped with our Touchless Air Wave Technology. The Irresistible Collection is the ideal combination of cutting-edge technology high-quality aesthetics and ergonomic design. The Technology works by gently and indirectly stimulating the clitoris with 11 different intensity levels ranging from super-soft to powerful. This beautifully designed toys encircles your clitoris without touching it and stimulates it via soft pressure air waves which creates a unique tissue penetrating vibration that cannot be achieved without the use of this technology. (Sound waves can travel through various media including liquids and solids. The average propagation speed for sound in body tissue is 1540 m/s the speed of sound also varies by the medium it travels through. Sound waves travels faster through muscle tissues than liquids). With the creation of our Touchless Airwave Technology we are able to create the perfect sound wave pulsation which can travel through tissue and stimulate the clitoral nerve endings producing the most profound orgasms you will ever experience! Dimensions package 6.3 x 5.12 x 2.76Weight package 13.23 ozProduct dimensions 4.72 x 2.95 x 2.32Product weight 4.76 ozProduct diameter 1.14Inner diameter 0.59Quantity motors 2Rotations per minute 4500 RPMRotations vibration tip 6500 RPMSpeed modes 3Noise level 60 dBRechargeable YesRechargeable time 120 minRecharged battery lifetime 60 minWaterproof YesSplashproof YesPhthalate free YesSpecifications Suction modes: 11Materials Medical grade silicone