Power bank with touch screen.
Material:ABS
Battery capacity: 4000mAh
Battery Type: Grade A polyme battery
Recycling life: ≥500 times
Size:116×65×7.5mm
Net Weight: 150g/pc
Input: 5V 1000mA
Output:  5V 1000mA
Charging Time:5-6 hours;
Colours available: black,silvery,red,green,blue,pink,blue etc
Working Temperature: -10.C to + 55.C 
Compatibility: Smart Mobile phones, DC, MP3,MP4, tablet PC,GPS,etc