✓1, Note: This device is exclusively for individual. ✓2, .Before use,with 75% of medical alcohol scrub this device,completely disinfecting and cleaning it. ✓3, Quiet working,enjoy yourself as privacy; ✓4, Using medical silicone , non-toxic odor , soft enough to be bent. ✓5, High grade medical silicone material 100% waterproof elegant and suitable for chirstmas gift . ✓6, Powered by 2 AAA Batteries ( Not Included ) .