HotRC DS-4A 2.4G 4 Channel Single Hand RC Radio Transmitter with 4Ch Receiver for RC Car boat AirplaneFeatures:HotRC DS-4A 2.4G 4-channel single-handed remote control radio transmitter with 4-channel receiver for remote control cars, boats, drones and aircraftBrand Name: Remote ControlItem Name: DS-4A TransmitterDo it in a different way more interesting1. New construction, true one-handed remote control.2. It has a locking function (locking the trim rudder for channels 1 and 2). While pressing the power switch, press and hold the4-way switch while pressing the power switch3. It has a fixed speed cruise function. After fixing the speed, it is also possible to increase and decrease the speed, whichcan be achieved by increasing or decreasing the throttle.4.1 Dual channel travel knob control5. For the hybrid control function (12 channels operating simultaneously), press and hold the 3-way switchPress and hold the power switch at the same time6. one-way and two-way modes are supported (press and hold the positive and negative channel sections while holding the power switch)(Press and hold the power switch at the same time)7. 7. The remote control will automatically switch off after 15 minutes of inactivity8. Failsafe (press and hold the code piece of the receiver while plugging in the power supply)9. 9. Digital steering wheel and analogue steering wheel supported (long press on the opposite code piece to switch (on for digital, off for analogue)10. 4 channels of the receiver support electric frequency signals and Pwm signalsSpecification:Applicable models:Model car/boat/tank/dual pass aircraftNumber of channels:4Frequency range:2.4GHZ ISMModulation mode:GFSKSpread spectrum mode:FHSSRemote control distance:ground distance about 400m, air distance about 800mChannel resolution:4096Transmitter power supply:DC 4V-9VNet weight:115gPackage includes:1*Remote control1*Receiver1*Lanyard1*Manual