... Temperature: -10 to + 55 centigradeCompatible with charging most of handheld digital devices,such as: Five popular brands mobile phones (Nokia,Samsung ... iPhone / iPhone 3G,iPhone 3GSBlackberryHandheld game consoles(PSP,NDS etc),digital camera,MP3/MP4 player,PDA,GPS Bluetooth headset etc portable ... are for reference only. Rechargeble Elegant Pocket Power Pack,Travel Mate,for laptops,phones,cameras