| Type RF Family/Standard Protocol Modulation Frequency Data Rate (Max) Power - Output Sensitivity Memory Size Serial Interfaces GPIO Voltage - Supply Current - Receiving | TxRx + MCU General ISM > 1GHZ - FSK, GFSK 2.4GHz ~ 2.483GHz 250kbps 4.8dBm -95dBm 4kB ROM, 2.5kB RAM SPI 7 1.8 V ~ 3.6 V 19mA 21.5mA |