1The output power is stable, the transmission distance is long, and the power supply filtering ability is strong. 2Fast 3speed power switch, two independent red indicator lights, indicating that the current transmitting power is 25/100/200MW. 3Support for OSD remote debugging ( IRC for Tramp), support for PIT mode debugging, can only be opened in for OSD. 4Small size, the antenna adopts for IPEX interface, which reduces the footprint for PCB board. 5Compatible for FPV racing drone, super mini, lightweight and stable performace. Item Type:Drone Transmitter Module Material: Electronic Component Color: As Picture Shown Size: Approx.16.5x16.5mm/0.6x0.6in(Without mounting holes) Mounting Hole Diameter: Approx. 1mm/0.04in Weight: Approx. 3.0g/0.1oz Input Voltage: DC 4.5-5.2V Input Current: 400 MA (200MW) Power Switch: 3 Gear 25MW/100MW/200MW Signal Channel: 40CH Frequency Switching: Manual Button/For OSD (IRC for Tramp) (support at the same time) Antenna Interface: For IPEX Fit for FPV Racing Drone How to use: 1. Frequency Adjustment: FR button can switch frequency Short Press: Switch channels, 4 blue LEDs indicate channels. Long Press (2 seconds): Switch group, 3 green LED indicator groups. There are 40 frequency points, a specific channel frequency reference frequency list. Interface Introduction: For GND negative pole of power supply + 5V power supply positive For VIN camera video input For RXD flight control serial transmission 1 xDrone Transmitter Module 1 x Antenna 1 x Connect Cable