<b>Specification</b><br> Battery Properties: Polymer Battery<br> Battery Capacity:180mAh<br> Input Voltage / Current: <b>5V /1A</b><br> Charging Type: USB interface charging <br> Fully charge time: 2 hour <br> Battery Lifespan: 500 cycles or more <br> Work time after fully charged: around 8 hours<br> LED Color: Blue (another one is Red)<br><br> <b>Notes</b><br> 1, After fully charged, please cut off the power<br> 2, It is forbidden to use over-powered chargers(e.g. 9V/2A, 12V/2A, 5V/3A, et)<br> 3, Do not use product when it is being charged<br> 4, Do not expose this product to rain or moisture<br><br> <b>Package Included</b><br> 2 × LED Glowing Glasses<br> 2 × USB Cable<br> LED GLOWING GLASSES