Come and see our amazing products. Practical tech promos are the best kinds of promos because consumers will use them every single day giving your brand the highest exposure. The output voltage is 5V1A, small enough to fit comfortably on the body, but still packing a charge for your devices. It is compact, lightweight, durable, easy to take anywhere. UL certification never worries about the safety issue. The big logo area lets you get creative. Pls confirm with us about the packing info, stock color and exact production time before placing your order