Full-digital control, the respone speed is 3 milli seconds; It can reach to digital servo`s (the response speed is the best in china); Remote control distance is based on requirement to adjust; You can use the button on the transmitter to adjust the distant to 100 meters or 500 meters; The full-digital control is more safe and reliable; Precise steering, increase rebounding force; Perfect straight; Linear more delicate; Can be used for pProfessional R/C car and R/C boat; 2.4 inch TFT color screen; Real-time dynamic display; Resolution: 1024 (256); Multilingual menu; Reversible; Hand operation; Stopwatch function; Dry cell battery: 6 x AA (9V) / Ni-MH battery: 6 x AA (7.2V) / Li-Po battery: 7.4V (not included)