... 10%-70% 9.Working current:<5.0MA,Operation Voltage:3.0-5.0V Standby time:150 hours ... 15.Enclosure made of aluminum alloys is used to make the machine more attractive, fashionable ... : NameAluminium alloy bluetooth keyboard for ipad 3 MaterialAluminium alloy Optional colorSliverOperating temperature-10-55 ... Gram,L/C,escrowDeliveryGenerally 5-7 daysShipment wayDHL(3~5days),UPS(5~7days),FEDEX(7-10days), ...