In modern life, cell phone is your best tool to communicate, and it makes your life wonderful. But when it has no power, what can you do except complaining? In this condition a new & hi-tech product will help-Emergency Charger, which can charge in anytime and anywhere. Pocket size and fashionable appearance, easy to carry, convenient to use in anytime and anywhere, only install one AA battery in it and then connect with your digital products. Don''t worry power in air because you have emergency charger in your pocket. Features: Convenient to use in anytime and anywhere, can communicate while charging. A revolutionary solution, using a lithium battery of 3.6V-4.2V for portable digital products. Pocket size, fashionable appearance (Colors can be selected), and diameter are 21mm, length 72 mm (round body). High saving power, standby 24 hours and it can communicate 100-180 minutes after once charge. The max charge current is 420mA (Decided by battery quality and model of cell phone) When red LED is bright, it is charging; opposite means full charged or no power in battery Technical parameters: Designed by One AA battery (Alkali, Carbon, Nickel-Hydrogen battery and etc) Input voltage: 1.0V-5.5V Output Voltage: 5.9V Input Current: MAX1200mA Output Current: MAX420mA Power conversion efficiency: >85% (Decided by battery quality) Standby current: <1mA Applied objects: Using One AA lithium battery to charge digital products, as MP3, MP4, digital camera, PDA, cell phone (Nokia, Samsung, Motorola, Sony Ericsson, Seimens, LG, etc) Operating guidance: Unscrew bottom and load one AA battery in it, then one end of connecter into charger, and another to your digital products. When red LED is bright, it is charging; Otherwise check battery''''''''s polarity, battery''''''''s power, and connector and see if they are all right or not. Packaging: Standard plastic package. Including One AA battery, two types of connectors (connectors can be changed if necessary), one charger and one copy of specification. Different packaging can be discussed. Notes: A new cell phone should use AC power to charge in first time. Don''t take plastic cover down. Don''t inflood oil dirt, water and other liquid in it.