Brand New Solution from DUMBORC- With Pseudo-Random FHSS algorithm, Dumborc X6PM-350 6CH Mini RC Transmitter has extraordinary anti-interference ability, and control distance up to 1640 feet (500 meters). 3ms Fast Response Time, Go and enjoy the freest RC experience! Upgraded Mix Control & Throttle Speed Limit- Not only supports Mixed Control of CH1 and CH2 but supports Mixed Control of CH3 and CH4, supports independent setting of servo direction and travel for channels 1 to 4 and CH6, providing more DIY fun to your models! The Dumborc X6PM-350 RC transmitter also with Unique Throttle Speed Limit Adjustment Function, Perfect for beginners and kids to practice at a safe speed!