Specification:Applicable Models:RC car/boat/tank etc. Number Of Channels:8 Product Weight:360g Remote Control Distance:About300M on the ground/800M in the air Transmit Power Approximately:90MA Modulation Mode:GFSK Spread Spectrum Method:FHSS Responding SpeedPWM:20MS Frequency Range:2.4GHz ISM Receiver Power Supply:DC 3.5V-9V Transmitter Power:DC 3.5V-9V Be set to runaway protection, fine-tuning button can be set to lock Only use FHSS frequency hopping algorithm, multiple people can operate in the same place at the same time without interference, and the ground remote control distance is stable 300 meters Receiver: F-08A 8CH receiver: All 8 channels are PWM signals Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Colour:Black Material:ABS Package Contents: 2 x Transmitter 2 x Receiver