Flight controller	Flight controller：SI-F4FC V1 Three-in-one tower Version:MATEKF411 MCU:STM32F411CEU6 (100MHZ, 512K FLASH) Sensor: MPU-6000(SPI connection) Store：Onboard black box Board size:21 * 21MM Power supply: 2-4S battery input (DC 7-17V) Built-in 12A(each) Blheli_S 4in1 ESC Dshot600 ready Built-in Betaflight OSD(SPI Control) Built-in Current meter Max 70A Current meter scale set to 480 Built-in 5V 2A BEC Built-in voltage detection
Onboard 4in1 ESC	Onboard 4in1 ESC MCU upgraded to EFM8BB21 Power supply: 2-4S LiPo/LiPo HV (7v/17v) Current: 13A continuous peak 15A (5 seconds) Support BLHeliSuite programmable Factory firmware: G_H_30_REV16_77.HEX Default protocol: DSHOT600
Motor	Motor Mode：GL1204 KV5000 Stator specifications：D12 * H4 0.2mm for Kawasaki Configu-ration:9N12P Stator Diamter:12mm Stator Length:4mm Shaft Diameter:Φ1.5mm Motor Dimension(Dia.Len):Φ16.0mm15.8mm Magent specifications: N52H Shift specifications: 2mm High strength steel Bearing Specifications: d2D5H2.5 MR52zz Japan ISC Custom made WindingSpecifications:180℃ Class Multiple oxygen-free copper Weight(g):5.8g No.of Cells(Lipo)：3S-4S
5.8G VTX	Power switching: third gear(25MW 、 100MW 、200MW) Frequency: 40CH Input voltage: 3.3V 5.5V Current consumption: 300mA(type) Frequency: 5.8GHz 5bands 40 channels With Raceband Smartaudio ready(Frsky EU-LBT and DSMX version not compatible) Weight: 2.0g
Camera	Model: Ant lite Image Sensor: 1/3" CMOS Sensor Horizontal Resolution : 1200 TVL TV System: NTSC and PAL switchable MENU: Support IMAGE: 4:3 Synchronization: Internal Electronic Shutter PAL: 1/50~100,000; NTSC: 1/60~100,000 S/N Ratio: >52dB (AGC OFF) Video Output: CVBS Lens: 1.8mm / F2.5 FOV : 165° Min. Illumination: 0.001Lux Auto Gain Control: YES BLC: YES WDR : Global WDR DNR
Propeller	Gemfan D51 (2020-4) Cinewhoop props Material: PC Weight: 0.91g Pitch: 2 inches Prop diameter: 50.3 mm Center thickness: 4.5mm Center hole diameter: 1.5mm 3 holes
Receiver Version (Optional)	Frsky XM+ Non-EU SBUS receiver Frsky D8/D16 switchable Compatible Non EU transmitter both D8 and D16 mode Channels: 8ch or 16ch Failsafe support No ground interference ( Transmitter and receiver 1 m from the ground): 300m Operating Voltage Range: 3.7~10V Operating Current: 30mA @5V Operating Range: Full range With RSSI output on board: Analog 0~3.3V Firmware upgrade-able, can be upgrade to EU with RSSI Frsky AC900 Three-in-one receiver SBUS receiver Frsky D16 for futaba s-fhss switchable Compatible Non EU transmitter both D16 mode Channels: 8ch or 16ch Failsafe support No ground interference (Transmitter and receiver 1 m from the ground): 300m Flysky AFHDS-2A IBUS receiver Protocol: AFHDS-2A Channels: 14ch(AFHDS-2A) No ground interference ( Transmitter and receiver 1 m from the ground): 300m Failsafe support TBS NANO CRSF Protocol,Official TBS transmitter compatible Protocol: CRSF Channels: 8ch Failsafe support Support receiver hardware rssi function No ground interference ( Transmitter and receiver 1 m from the ground): 500m DSMX/DSM2 Seria IBUS Receiver Protocol: DSM2/DSMX Compatible Channels: 6-9 (Depend On Your Radio) No Ground Interference (Transmitter and Receiver 1 M from the ground): 300M
Battery Recommended	Species : lipo、lipoHV Capacity:450-550mah Voltage:7.8-14.8v Continuous Discharge Rate: 60C Instantaneous discharge rate: 80C Connector: xt30

Features:

- Adopt SIF4 1.0 flytower flight controller to support 2-4s lithium battery power supply, independent four-in-one 13a ESC. The integrated Betaflight OSD function keeps abreast of the signal of the flight voltage receiver and can observe the status in real time while flying. With 16m chip black box, it is more convenient to adjust the machine for analysis.

- A more compact design is adopted for the first time, with a wheelbase of 78mm. However, passing long-term flight tests will not affect flight efficiency at all. The FPV end adopts CADDX ANT lite camera, the image quality is clear. The complex environment of flying indoors has better observation and controllability.

- The 4s power supply and 2-inch ducted four-blade propeller have been tested and matched for a long time and have good operability and durability. It is recommended to use 4s 450mah battery, if you need more residence time, you can add 4s550mah battery. Through continuous improvement, the problem of low efficiency of the 2-inch air duct machine was finally solved. Indoor small cross aerial photography becomes a reality. In order to better protect the outer ring, EVA sponge material is used to improve safety and reduce wind resistance. Through some modeling optimizations, the performance is very good.

- Independent use of multiple versions of the receiver, electronic control is more stable. The flight control adopts the newer version of Betaflight 4.2, and the ESC adopts the 16.77 version. Both the two-way DSHOT mode and the gyroscope RPM filter are turned on to make the flight control more stable.

- Using 1204kv5000 motor and 2020 ducted four-blade propeller 3-4s power supply, the efficiency ratio is super high. Flight control stability

- The whole machine is controlled at 90 grams, which solves the weight problem of traditional ducting machines and is flexible in control.

- Package includes gopro6/7 bare metal cover and camera mount, users do not need to purchase separately

- Compared with 3-inch and 2.5-inch air duct machines, the air duct is smaller and the flight efficiency is not affected. By installing the lightweight GOPRO bare metal, it is very suitable for professional video photographers.

Package Included:
1 x 78mm 3D Printing Combined Frame
1 x 3D Printed for GOPRO 67 Naked Camera Caset

Option1: SIF4 1.0 FC external Frsky NON-EU xm+ Receiver

Option2: SIF4 1.0 FC external DSMX receiver

Option3: SIF4 1.0 FC external Frsky AC900 Receiver(Multi-mode receiver)

Option4: SIF4 1.0 FC external TBS NANO Receiver

Option5: SIF4 1.0 FC external FLYSKY Receiver

Option6: SIF4 1.0 FC PNP NO RX Receiver

4 x GL1204 5000KV Motor
1 x 2020 Propeller(4cw+4ccw)

1 x 5.8G VTX5840

1 x RGB LED
1 x GL950 Camera
1 x Screwdriver Removal Tool
1 x Battery Magic Strap
1 x USB 90°Adapter Plug

1 x Caddx Ant Lite

1 x 4s 450mAh Lihv Battery