DMKR FPV Goggles 800D Pro Replaceable and compatible video receivers of different frequencies 5 inch 800*480 HD screen with DVR build in Battery(w/o receivers)

FPV Goggles 800D Pro Compatible with different frequencies video receivers replaceable with 5.8GHz, 1.2GHz, 1.3GHz and other receivers, 5 inch 800*480 HD screen with DVR build in Battery For RC Model RC FPV Drone Features Support DVR: With DVR,you can record videos anytime and anywhere . Low Power Consumption: The working current as low as 400mAh can greatly improve the battery life, so that you no longer have to worry about battery life. Auto-Searching: Support a key search frequency to quickly and easily find the working frequency you need. 5 Inch HD Screen: 16:9  800*480 dot high brightness LCD HD Screen Provides better, clearer and smoother picture quality. Built-in Battery: Built-in 7.4V 1200mAh high-capacity rechargeable li-ion polymer battery. Each full charge can provide about 2 hr  of working time when the DVR module is ON; about 3 hr of working time when the DVR module is OFF. Support Audio Signal Output: You can connect headphones. Support External Video Signal Input. Rea