If you ask for my advice， I am really willing to introduce you this YuanBoTong Universal Dual USB 13000mAh Emergency Mobile Power Charger for its high capacity and excellent performance. Made of high quality material， this mobile power is up to standard， safe and reliable to use. For meticulous craftsmanship， it is exquisite and eye-catching for its generous appearance and perfect detail. With small size and light weight， this mobile power is very easy to carry and store. What’s more， featuring 13000mAh capacity， it will quickly and conveniently charge your mobile device. The particular dual USB design could simultaneously charge two devices， which is time saving. This wonderful mobile power will not let you down!                                    Features             Mobile power storage， portable for both in door and outside<br> Up to standard， safe and reliable to use<br> Perfect power supply for business trip， travel， field work， etc<br> USB port， plug and play， charge whenever and wherever<br> Repeatedly use of a single charge， portable design， convenient to carry<br> High capacity and portable design， great for travel use<br> Dual USB， time saving and much more convenient<br> The best choice for charging mobile phone， iPad， and other rechargeable devices   <br>                                                            Specifications             Quantity     1 Set     <br> Material     ABS     <br> Compatible Type     Universal     <br> Battery Type     Li-ion Battery    <br> Battery Voltage     5V     <br> Capacity Range     13000mAh     <br> Input     5V， 1A     <br> Output     5V， 1A; 5V， 2.1A     <br> Charging Time     3~5 Hours    <br> Working Time     6~8 Hours     <br> Dimensions     (5.31 x 2.48 x 0.87)" / (13.5 x 6.3 x 2.2)cm (L x W x H)    <br> Weight     9.56oz / 271g     <br>                                                             Package Includes            1 x Power Bank <br>1 x USB Cable<br>