Features: Inputvoltage:0.9V-5VDC Transferefficiency:96%(max) WithUSBport Withworkingindicatorlight withoneAAbatterypowersupplyoutputcurrentcanupto200~300mA twoAAbatteriestotheoutputcurrentof500~600mA Specifications: Size:34x15x7mm Netweight:4g Packagecontent: 1x0.9V-5Vto5VDC-DCBoosterModuleUSBMobileStep-upPowerSupplyModule