BF-101:Single channel transmitter
BF-102:Double channels transmitters
BF-106:1 channel group control,5 channels individual control
BF-109:1 channel group control,8 channels individual control
BF-115:1 channel group control,14 channels individual control
-Radio control range:outdoor 200m,indoor 70m
-Frequency:433.92MHz
-Radiation power:5mW
-Battery:DC3V