Technical characteristics: Rated capacity of this product is 2000mAh. battery, up to 500 cycles or more.The screen will show the charging status when charging, when finish charging will display full. This product needs to be used with the mobile phone APP (Shining Mask). Adopting high power, high light, lamp beads Press the power button, and then cover the sensor switch with the hand, when display ' OK ' in the screen, then can use gestures to change the screen picture. Product Information: Product Name: Shining Mask LED lamp beads: 2074pcs Pixels: 46 x 58 (irregular) Material: plastic colour: black Package Contents: 1 x Mask Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.