Mobile power bank for Iphone 4/4S emergency charger Universal Power Bank

Specifications:

Weight: 65g

Capacity: 1900mAh

Cell type: Li polymer battery Lithium-ion

Dimension: 12.5 * 63 *16(mm)

Output voltage: 5V

Output current: 500mA

Cycle life: 500times

Function & character:

Enhance Iphone 4 signal

Power check & indication 

Power switch

Protective and powerful

Signature:

Standby Time -Up to 230 hours

Talk Time-Up to 6 hours

Internet Use-Up to 5.5 hours on 3G & Up to 8 hours on Wi-Fi

Audio Playback-Up to 30 hours

Video Playback -Up to 8 hours

Power bank for notebook