This device is has best results with video set at 2K. 1080 isn't good enough to pick out registration details on vehicles. The sd card supplied isn't big enough to support any ride over about 1.5 hours. A 64GB card resolved this. The instructions say "turn it on and it automatically starts recording". It did twice then failed to start several times. I now have to start it at least twice to get it to record. A YouTube video gave a lot more information than the Ravemen instructions too. A shame it falls down in many places, I had a Ravemen rear light and it was excellent.
