This Receiver Kit for DIY RC Boat Cars. Measured control distance: The receiving is , the antenna of the receiving is erected, the height above is 10cm, and the measured control distance on a spacious ground 80m. In the case of water control, the control distance will be reduced due to the influence of the water water and the height difference between and the water . The control has reserved SMA antenna interface, which connected with the . 1. The working voltage range of the receiving is DC5-15V, the output voltage of each channel is the as the input voltage, please use battery for ; 2. The load current of each channel is 5A, the current , and each output channel It can only be connected to brushed motors with wires, but not and brushless motors; 3. The is jog , and each output of the receiving can only control the forward and functions of the motor, and cannot adjust the . Size: 15.5x13cm/6.10x5.12inch, Receiver 3.92x5.35cm/1.54x2.11inch Specification: Material: Plastic Channels: 6 Frequence: 2.4G Voltage:DC 6V-15V Includes: 1x RC 1x Receiver 1x Screwdriver Note: 1. This is not infant toy , please take away from avoid eating. 2. Please allow slightly error due to manual measurement. 3. Due to the difference between monitors, the picture may not reflect the actual color of the item. 4. Wish you a wonderful shopping!