Product Model： FS-MG4-BS
Channels：4
Model Type：  Car, Boat
Range： ＞150m (Ground distance without interference) 
Wireless protocol:  2A-BS
Battery：  6V DC/1.5AA*4  
RF: 2.4GHz ISM
Channel Resolution: 1024
Antenna Type：  Built-in single antenna
Dimensions ：118mm*73mm*145mm
Weight： 130g