Features: Exquisite workmanship, manufactured and tested to highest standards. Remote controller for RC car and RC boat. The package includes 2.4G 7CH remote controller and FS-R7P receiver. 7CH, need 4*AA battery(not included). If there are any problems, please contact our store in time.Specification: Flysky FS-G7P Transmitter Main Material: Plastic Frequency: 2.4GHz Color: Black Channel: 7CH Model Type: Cars, Boats RF Frequency 2.4GHz ISM: 2.4G Protocol ANT Maximum Power: <20dBm(e.i.r.p.) (EU) Reception Sensitivity: -99dBm Channel Resolution: 1024 Low Voltage Warning: YES Date Output: PWM/PPM/i-BUS/S.BUS Input Power: 4-9V/DC Battery: 1.5AA*4/2S Lipo(JST) Data Output Type: -C Interface Charging Interface: NO Antenna Type: Built-in Single Coaxial Cable Antenna Display Mode 128*64 LCD(Black and White Dot Matrix Screen) Online Update: FlySky Assistant Update Distance: 300m(Ground) Working Current: About 110mA/6V Temperature Range: -10?~+60? Humidity Range: 20-90% Size: 136.4*111.8*197.5 mmFlysky FS-R7P Receiver Channel: 7CH Model Type: Cars, Boats RF Frequency: 2.4Ghz ISM RF Standard: ANT Input Power: 3.5-9V/DC Weight: 8g Size: 35*23.3*13.3mmPackage Information: Package Size: 20.5*17*12cm Package Weight: 500g Gift Box PackagingPacking List: 1* Remote Controller 1* Receiver 1* User Manual