Exclusive sound-sensitive Sound Response System, increases vibration intensity as ambient sound and music is detected by built-in sensor during use. Longer and thicker, measuring 9.25 in. by 1.75 in., the Maya is constructed of top quality, odorless, body friendly silicone. Luxurious soft, silky, seamless finish on shaft. Quiet with a powerful motor system. Choice of 10 vibration levels activated via push-button. Splash-proof and rechargeable via USB cable. The heavy duty Li-ion battery allows for up to 3 hours between charges.