This remote control system uses the new 2.4 GHz ANT protocol - "enhanced automatic frequency hopping digital system", consisting of a CR7P transmitter and a R7FS receiver. There are 7 channels available. The system is ideally suited for crawlers, on-road cars, off-road cars, drift cars and boats. The large 3,5 x 7,0cm DOT Matrix Display shows all selected parameters clearly. FEATURES Description of the channels:CH1: Steering wheelCH2: Throttle (Trigger)CH3: SW1 knobCH4: SW2 knobCH5: SW3 3-way switchCH6: VR1 rotary switchCH7: VR2 3-way toggle switch 5-way navigation button5-way trim switchNew "ANT" 2.4GHz protocol Various MIX functions (program mixer, dual motor mixer, 4-wheel steering mixer)Supports 4* AA batteries or 2S LiPo battery as power supply2-way data transmission 20 model memoriesBeginner ModeTimer / lap counterStandard functions like REV / EPA / SUB TR / D/R and CURVE settingsInternal antennaCalibration programLightweight and compact design weighing only 305g (without batteries)Up to 300m range  SPECIFICATIONS Remote control CR7P:Frequency: 2.4GHzChannels: 7Model type: cars, boatsRF frequency 2.4GHz ISM: 2.4G protocol ANTMaximum power: <20 dBm (EIRP) (EU).Receive sensitivity: =-99dBmChannel resolution: 1024Undervoltage warning: YESDate output: PWM/PPM/i-BUS/S.BUSInput power: 4-9 V/DC Battery: 1.5 AA * 4 / 2S Lipo (JST)Data output type: -C interfaceCharging interface: NOAntenna type: Built-in single coaxial cable antennaDisplay Mode 128*64 LCD (DOT matrix screen, backlit).Distance: =300 m (ground)Working current: approx. 110mA/6V Temperature range: -10?~+60?Humidity range: 20-90%.Size: 136.4 x 111.8 x 197.5 mmWeight: 305g  Receiver R7FS (2020017):Model: R7FSFrequency: 2.4GHzChannels: 7Waterproof: NORF Frequency: 2.4GHz ISM RF Standard: ANTInput power: 3.5-9 V/DCWeight: 8gSize: 35*23,3*13,3mm INCLUDED IN THE SET 1* CR7P remote controller1* R7FS receiver1* Instruction manual (DE/ENG/FR).