... , rechargeable and universal power pack;----LED light function, indicates the power status at any time.----Over current, over charge, ... players / USB music speaker / Bluetooth products / USB AA/AAA battery charger Battery Type 18650 Lithium-ion batteries Capacity 4400mAh Input 5V,500mA ... , connectors Delivery Time3-7 working days OEM or ODMYes, the colors , shape, and logo can be customized, as your ...