Product features: 1. New frequency hopping communication technology 2. Support tank mixing control and program-specific mixing control 3. Support wireless trainer, PPM input output, head search function 4. All channels can be independently set to forward and reverse direction and stroke size 5. Direction and throttle curve can be set 6. Support crane control 7. Ten groups of model selection 8. Remote control distance 350 meters (ordinary receiver returns signal 40 meters, long distance receiver returns distance 350 meters) 9. Dial wheel parameters, simple and intuitive operation settings 10. Support USB firmware upgrade 11. Compatible with all Dumbo receivers DDF-350 + X10F/X10FG Can show battery voltage level