All scale models falls into 4 categories : RTF, ARF, PNP and Kit Only.
What is:-
RTF - Ready To Fly (Complete model set with Tx & Rx, otherwise specified)
ARF - Almost Ready To Fly (Complete model set but NO Tx & Rx)
PNP - Plug n Play (Complete model set but NO Battery/Charger/Tx/Rx, depending on demand)
Kit Only - Kit only with ducted fan/s (Otherwise changes are stated)
Tx - Transmitter (For your hand control) can use either 2.4Ghz or Normal FM
Rx - Receiver (For your model control) can use either 2.4Ghz or Normal FM
Note : All models need both pair Tx and Rx to operate together to work, for FM (Tx/Rx) need same frequency crystals, for 2.4Ghz (Tx/Rx) uses automatic frequency detect.
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