With v2 firmware update, correcting many flaws of the previous 9X, plus inbuilt 2.4Ghz (no daggy second antenna) this is a quality, reliable 2.4Ghz system suitable for beginners and pro pilots alike.Get that locked-in feeling that only 2.4Ghz glitch free technology can provide.Ultra fast reaction times and interference free control of your model is only achievable with this2.4Ghz technology.Without a doubt, the best value 9Ch system available!Number of Channnel: 8ch ppm/9ch pcmDisplay: 128*64LCDSupport Type: Heli/Acro/GlidSupport user: 8Stick model: 4Encoder type: ppm/pcmSubtrim: YesSimulator Interface: YesBuzzer: YesLow Voltage Show: YesRequired: BatteryIncluded:Turnigy 9x 9Ch TransmitterTurnigy RF9X-V2 module Turnigy 9X8C-V2 8-channel receiverImportant.The TURNIGY 9X has been reflashed with the new v2firmware, fixing previous menu and mixing issues. This firmware flash is only available from our TURNIGY 9X system as we flash each unit in our officebefore it is shipped.Purchases ofany 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.