10mW output, 433/868/915Mhz, small size RF power :less than 10mW/ 10dBm Receiving current: less ... : GFSK. Based on the Gaussian Frequency Shift Keying (GFSK) modulation, High anti-interference and Low BER (Bit error Rate); * Half duplex ... Match with YS-C20 & YS-C30 series radios. Low power ,high speed 1.2~19.2Kbps data transceiver YS-C20S