HOTRC DS-4A 2.4GHz 4CH Single-Hand Remote Control Transmitter for RC Car Boat Tank Airplane Precise details: Description: Brand: HOTRC Item Name: DS-4A Transmitter Applicable products: Model Vehicle/Boat/Tank/Two-Way Aircraft. Number of Channels: 4 Frequency range: 2.4GHz ISM Transmitting power: ≈70MA Modulation mode: GFSK Spread spectrum mode: FHSS Response speed: PWM≤20MS Remote control distance: Ground distance≈400m, Air distance≈800m Channel resolution: 4096 Remote control power supply: DC 4V-9V Power weight: 115g Features: 1. New structure, real one-handed remote control; 2. It has the locking function (lock the fine-tuning rudder of 1 and 2 channels). Press and hold the 4-way switch while pressing the power switch; 3. It has fixed-speed cruise function. After fixed-speed, it can also increase and decelerate, which can be realized by increasing or reducing the throttle; 4.1 2-channel stroke knob control; 5. Mixed-control function (12-channel operation at the same time), hold down the 3-way switch while holding down the power switch; 6. Support unidirectional and bidirectional modes (hold down the positive and negative channel parts while holding down the power switch); 7. The remote control will automatically shut down after 15 minutes without operation; 8. Out of control protection (press and hold the receiver to the code piece while inserting the power supply); 9. Support numerical steering gear and analog steering gear (long press the opposite code to switch (on is numerical, off is simulation). Package Included: 1x HOTRC DS-4A 2.4GHz 4CH Transmitter