Transmission Distance:3000M @1.2kbps
•Chipset: Silicon Lab Si4432 

•Frequency Range :433/470/868/915 MHz  
•Max output power: 500 Mw 
•Modulation Mode:GFSK 
•Interface: USB 2.0 
•Sensitivity: -121 dBm
•Channels No.::40 Channels
•4 bytes net ID
•2 bytes node ID
•Antenna match automatically and bi-direction switch control
•Support Serial port parameter setting