The PowerXTD Beta rechargeable mobile power bank's lithium ion batteries give you 2,200mAh of backup power for your mobile phone or other digital device. It has a clear case with color interior, charging indicator light and includes a micro USB cable to charge the power bank. Output is rated at 1A. This product has undergone the most rigorous testing in the industry and is UL Certified, and BC (California Energy Commission), and FCC VOC certified.