RunCam Mini FPV DVR Designed for Mini FPV Racing Drone Quadcopter ,Suitable for all Runcam camera. 25*25mm @ 20*20mm M2 holes, Net Weight 3.5g / 0.12 Ounces. Lossless video output for VTX, resolution VGA 640 x 480, @ 30fps(NTSC). The DVR has been loaded,so the output of video will be amplified synchronously. Record high-frequency vibration motor audio without access to MIC Recording files will be saved automatically by segment per each 5 minutes and recording stops when Micro SD card is full. It takes about 2G capacity for 1 hour recording. Thus an 8G Micro SD card can record about 3.5 hours. Max 32G SD card.(SD card not include). DVR won’t save the file automatically after power off. So please stop recording before power off. Otherwise, you will miss your last recording. RunCam FPV