... /19200/38400bps 5.Good sensitivity JZ874A(B),USB transceiver modules ,1. Ultra low power transmissionTransmission power: 500mW(JZ874B), 100mW(JZ874A);High receiving ... sensitivity: -123dbm,Size: 70mm*45mm*19mm2. Low power consumptionReceiving current<45mA, transmission current<360mA(JZ874B),. <100mA(JZ874A),3 ... to users different need to achieve a optimal effect. USB RF TX/RX Module JZ874