1.Size:116*65*8mm         
2. Volume: 4000mAh/3.7V
3. Input: DC5V 1A
4. Output: DC5V 800mA
5. Charge:Adaptor or Connect with computer by USB port
6. Life:more than 500 times
7. Applying environmental protection polymer lithium battery,extremely long life. With over flow, overcharge, Overloadprotection functions. Using high quality aluminum alloy design,fashion, beautiful appearance.With touch screen
8. Four colors: blue, green, pink and rose