DETAILS OF GOODS: LED color display the power of battery: When the power is lower 10%, LED shows "Red" color. If power is between 10% and 50%, LED is "blue" color. When power is above 50%, LED light will become "white" color. Features: 1. Vacuum Coating Battery, never scratched. 2. 7 colors, dragon design on the tubes. 3. 650mah/900mah/1100mah 4. full power output 5. Cellphone USB Cable/External interface with Mirco USB port 6. smile face button Specifications： 1. best circuit board, has over-charge/over-discharge/short-circuit protection. 2. it has 5 click lock/unlock functin. 3. best A+ cell, the defective rate lower than 0.1% 4. battery very stable, very safe to use. 5. real size, lasting for a long time. 6. With "smile" expression on button of battery