This transmitter has 8 channels. They are needed when you have a plane, glider, or multi-rotor (quad or hex, etc.) and you want to control a gimbal (2 channels for pan and tilt), and you can release landing gears or turn lights on or off, etc.

With the v2 firmware update, correcting many flaws of the previous 9X, plus built-in 2.4 GHz (no daggy second antenna), this is a quality, reliable 2.4 GHz system suitable for beginners and pro pilots alike.
Get that locked-in feeling that only 2.4 GHz glitch-free technology can provide.
Ultra-fast reaction times and interference-free control of your model is only achievable with this 2.4 GHz technology.

Without a doubt, the best value 9-channel system available!
 

Number of Channels: 8ch ppm/9ch pcm
Display: 128*64LCD
Support Type: Heli/Acro/Glid
Support user: 8
Stick model: 4
Encoder type: ppm/pcm
Subtrim: Yes
Simulator Interface: Yes
Buzzer: Yes
Low Voltage Show: Yes
Required:  Battery
 
Included:
Turnigy 9x 9Ch Transmitter Mode 2 (throttle on left)
Turnigy RF9X-V2 module
Turnigy 9X8C-V2 8-channel receiver
 
Important.
The TURNIGY 9X has been reflashed with the new v2 firmware, fixing previous menu and mixing issues. This firmware flash is only available from our TURNIGY 9X system as we flash each unit in our office before it is shipped.
Purchases of any other rebranded version of the TURNIGY 9X will not have the latest firmware and patches (even the OEM factory does not have these updates).
NOTE: "SWITCH ERROR" means you have one of the switches in the wrong position when you turn the radio on. It is not a fault.