2500mW high power, stronger penetration ability, more stable picture, longer distance IP67 waterproof level, soaked in 0.5 meters of water for 30 minutes without any harm Built-in two-stage filtering circuit, the received picture is cleaner, the screen flickers less, the VTX control protocol is for SmartAudio, and supports OSD parameter adjustment Anti-reverse connection, anti-surge, over-temperature protection circuit, safe and reliable Aluminum alloy CNC shell + fan active heat dissipation to ensure continuous and stable full power output Output power: 200mW/800mW/1W/2.5W Transmission distance (no interference at the seaside): 8KM Input voltage: DC7-33V Output voltage: None Rated current: 10V/900mA 2.5W10V/900mA 2.5W Video format: NTSC/PAL Output frequency: 40CH(A-B-E-F-R) Adjustment method: OSD Indicator: 1 power indicator (red light) Microphone: None Image transmission protocol: SmartAudio Antenna interface: MMCX Working environment temperature: -10℃-40℃ Mounting hole: 20x20mm (M2) The product appearance and printed words may vary depending on the batch, but this does not affect use Colour:Black Material:Aluminum Alloy Package Contents: 1 x VTX Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.