<p>❤Material: Silica gel+TPR+ABS.</p><p>❤Charging type: USB charging.</p><p>❤Function: 30 frequency vibration, memory, waterproof.</p><p>❤Waterproof property: Waterproof in life.</p><p>❤Maximum noise: About 40 decibels, very quiet.</p><p>❤Quantity: 1PCS.</p><p>❤Tips: </p><p>❤There may be 1-3mm errors due to different measurement methods；</p><p>❤The color of the product will vary slightly depending on the setting of the computer screen. The color of the actual product shall prevail, please be considerate.</p>