The Power Exchange Vibrating Sound by Master Series has just enough vibrational power to offer a sensitive mind blowing feeling when inserted in the urethra. For even more varied stimulation The Power Exchange Vibrating Sound can also be used as a pinpoint vibrator, with all the fun and exploration that entails. The sound is made from stainless steel is and is non-porous, easy to sterilize, and is temperature & impact resistant. For urethral and sounding play. For safety: Make sure the plug has been sterilized and is being used with surgical grade, sterile lubricant to avoid tearing and UTIs! Takes 1-AAA battery. Available in two lengths, medium and extra long.