1.500mW,up to 1-3km 2.used for low power telemetry,wireless conference voting system,Wireless dishes ... The charge time for receiving and sending <10ms.ve 2 on-off input ports,2 on-off output ports ,user can control remotely terminal without ... inner function, it changes the traditional product structure and also improve the reliability of our modules. IO Function Data Transmitter and Receiver JZ872