1) Truly wireless battery charger for mobile electronics 2) Ideal to use as a travel charger, thus eliminating the need to carry to bulky device chargers 3) Uses one replaceable AA battery 4) A safe stream of power to charge cell phones and shuffles 5) Up to 3 extra hours of talk time 6) Up to 90 hours of standby time 7)High-quality Aluminum body 8) Chooses phone connector (please kindly tell us which type of phone do you need to fit with our charger) 9) Charging current: 300mA maximum (varies with usage conditions),output voltage:5.7v+/-5% 10) Adds up to 240mAh to devices battery per AA battery 11) Typical efficiency: 87% 12) Automatically starting up when current is drawn at the output (upon connection to device)