<p>1.Mode:10 different Modes</p><p>2. Material: Food-gradesilicone</p><p>3.Max noise:<50db</p><p>4.Battery:170mAh rechargeable lithium battery and 3V 2032 button cell</p><p>5.Power:USB 5v 150mADC charging, charging time about 1.5H, use time about 1H</p><p>6. Waterproof Rating:IP65</p><p><br></p>