Come and see our amazing products. Built-in 20000mAh high capacity polymer battery equipped with a compact solar panel, which could recharge the battery itself under sunlight, eco-friendly and ideal for outdoor activity.2 led lights can be used as flashlight with Steady-SOS-Strobe mode. Five pilot indicators show the status of battery charger timely. Easily hang it on your backpack with the carabiner, hands-free on the go. Build-in Lithium Polymer battery cells, anti-explosion, lightweight, compact and reliable.Universal Device Compatibility and Dual USB Port to charge 2 devices at the same time.External battery charger with solar panel can recharge by solar or outlet.Your logo imprint is also available. Pls confirm with us about the packing info, stock color and exact production time before placing your order.