... 5 voltage digital products like mobile phones, MP3,.MP4 and PSP ,such as:Five popular brands mobile phones(Nokia,Samsung,SonyEricsson,Siemens ... charging, over discharging and short circus, so that your digital products and mobile phone cant be harm any5.Unique temperature ... temperature over 50°C, so that better to protect battery, digital products and mobile phone,6.Fashionable and elegant , delicate ...