Features: 1.Pocket-size transmitter, light, more handy for operation. 2abs+pc transmitter housing, water/shock/dust proof. 3.Transmitter 2-4 functions equipped with a push type emergency stop button. 4.Receiver with 4-led, quick, simple judgment for operation status &after services. Transmitter: Technical data: Operation distance:30m(open space) Frequency:fm418/433mhz Output power:
