Dual USB 5V 1A 2.1A Mobile Power Bank

HM-T series FSK transmission moduleFEATURESHIGHLY INTEGRATED, SMALL SIZEHIGH SENSITIVITY, LOW POWER CONSUMPTIONFSK TECHNOLOGY, SUITABLE FOR REPLACING ASK MODULESLESS INTERFRENCE, LONGER

single chip, low power, multi-channel FSK transceiver designed for use in applications requiring FCC or ETSI conformance for unlicensed use