Since the Universal Serial Bus specification provides for a five-volt power supply, it is possible to use a USB cable as a power source for recharging batteries. Products based on this approach include chargers for cellular phones, portable digital audio players, and tablet computers. They may be fully compliant USB peripheral devices adhering to USB power discipline, or uncontrolled in the manner of USB decorations. Our Battery Charger is wide use for your electronic devices such as Smartphone: Iphone5/5s, Iphone 4/4s, Samsung Galaxy, HTC; Ipad, Ipad mini, Andriod Pad, Kindle fire; Cameras... Your custom brand or logo can be done as your request.