Happymodel Mobula6 1S 65mm Brushless Whoop Drone Mobula 6 RTF with LiteRadio 2 Radio Transmitter Mode 2 19000KV Motors Notice: Mode2=Left hand throttle              Mode1=Right hand throttle Package include: 1x Mobula6 1S 65mm whoop Drone BNF Frsky Version with 19000KV Motors 1x LiteRadio 2 Radio Transmitter with 350mAh 2S battery (Mode 2) Happymodel Mobula6 1S 65mm Brushless Whoop Drone Mobula 6 BNF AIO 4IN1 Crazybee F4 Lite Flight Controller Built-in 5.8G VTX Features: AIO 4IN1 Crazybee F4 Lite flight controller built-in 5.8G VTX Extreme light 1S 65mm Brushless whoop only 20g Runcam Nano3 The lightest 1/3 CMOS 800TVL Camera Smooth and powerful Compatible for 1S Lipo/LIHV Camera Angle adjustable Specifications: Brand Name: Happymodel Item Name: Mobula6 1S 65mm Brushless whoop drone BNF version Wheelbase: 65mm Size: 80mm*80mm*37mm Weight: 20g Receiver option: Internal SPI Frsky version (Compatible with ACCST D8/D16, Recommend D8 mode) Motor speed option: SE0802 KV19000(Regular Edition) BETAFPV LiteRadio 2 SE Radio Transmitter 2.4G 12CH Remote Controller Futaba / Frsky Protocol for FPV Racing Drone Simulator Specification Frequency Range: 2.4G (2403MHz-2447MHz) 2.4G System: NRF24L01 and CC2500 Channel: 12 System: Futaba Protocol / Frsky Protocol Power: ≤80mw Model Type: Multi-rotor Support USB Charging Support FPV Simulator Connected Output: PPM, support Student Radio Mode LED Light: Green-Power On / Red-Warning / Blue-Normal Battery: 1 * 350mAh 2S Battery& 65288;Removable& 65289; Weight: 227.4g (with battery) How to switch the protocol (D16/D8 Version) Press and hold the bind button, then press the power button until the purple light is flashing. The flashing LED indicates different protocol the LiteRadio works on. LED StatusProtocol Version Flash OnceFrsky D16 FCC Flash Twice Frsky D16 LBT Flash Three Times Frsky D8