Experience the luxury of the Mika Sound Responsive Personal Massager. The 100% medical grade silicone material gives you the assurance that this massager is totally safe for your body, and the velvet finish gives you that extra soft touch! Exclusive sound-sensitive "Sound Response System", increases vibration intensity as ambient sound or music is detected by built-in sensor during use. Seven vibration functions with three variable strengths each gives you a vibe with twenty one different ways to please you! USB chargable with a long lasting lithium ion battery, the nobu is on the cutting edge of pleasure technology!