... attached ,can used in car or at home3.portable and elegent design ,demension:10*6*3 CM4.1200mAh ... power-low devide(mobile phone ,digital camera...)5.smart and energy saving ,you can choose to storage the ... button6.easy to use but muti-fuction ,a useful and ideal partner when traveling7.safety ,reliablity,Short cirtuit, ... dischargering ,can use 1 or 2 PiecesNi-Mh/Ni-Cd,AA/AAA, or 1 piece Liion to charge ...