Mobile power storage, portable for both indoor and outdoor use, Tested and excellent quality ensured, Original, 20000mAh, rechargeable from the USB port, Perfect power supply for business trip, travel, field work and so on, Fit for cellphone, MP3, PDA, console and other digital products, USB port, plug and play, charge your device whenever and wherever, Exquisite and durable, special for several types of digital devices in your family, Portable design, convenient to carry and use.