Fangrui Product Details Frequency: This Transmitter Has A 5.8g Frequency, Which Is A Must-have For Long-distance Fpv Drone Flights. Make Sure To Connect The Antenna Before Powering On To Avoid Damage Advanced Features: Equipped With 64 Channels, Four Power Levels, And Compatible With Pal And Ntsc Systems. Built-in Frequency Phase-locked Loop, Low Harmonic Radiation, High Reliability, Stability Using Digital Phase-locked Loop Circuit, No Temperature Drift Support Tbs Protocol Osd Parameter Adjustment Compact And Powerful: This Transmitter Is Compact, Small In Size, And Has High Transmission Power, Making It Ideal For A Variety Of Drone Settings Fixing Hole:30.5x30.5mm Spacing. Operating Voltage:dc7v-36v(2s-8s) Operating Current:600ma100ma Under 12v Case Maximum Power Consumption: 7w Rf Transmit Power: Greater Than 33dbm (2.0 Watts) 64 Working Channels, Push-button Selectable Settings 4 Power Levels, Push-button Selectable Settings Colour:as Shown Material:pcb The Actual Product May Have Slight Color Difference Or Difference, W