Sure I have this. Long story short £20 clone of SJ4000 clone of GoPro will do just fine. Save your money and spent £50 the results is the same if you are after permanently wired black box style set up. So here is my black box permanent two camera set up. The only expensive bit is PDM60, but you can use a relay and a fuse. I have mounted the 4k Firefly camera in front and the other on the back. Frankly the video quality for 4k is more or less the same as 1080p. It is permanet mounting. Have used soldering iron to make a nice holes in the waterproof cases for both so that I can plug USB cables. Than sealed with some silicone. Both cables are zip tied and go under the seat where I have two ports USB socket mounted and connected to the PDM60. After I turn the ignition on PDM60 gives me nice 7 seconds delay before turning the power for the USB socket on. Both cameras are set up in DVR mode, means you turn power they start recording, turn off power stops recording. Kind of black box set up. Both have 32Gb cards and are set up to record 5 minute clips in never ending cycle mode. Each 5 mins clip is about 400mb so with 32Gb cars that gives you about 400 minutes recording before it gets overriden. 400 minutes is about 7 hours riding time means 2-3 days riding before overwrite. Because the cameras are sealed I use laptop to connect and download videos: http://farm1.staticflickr.com/638/23593472760_833e1f4903_k.jpg Back camera cheap clone of SJ4000 clone of GoPro: http://farm6.staticflickr.com/5705/23260969194_9ae2bd565a_k.jpg Front camera Firefly 6S: http://farm1.staticflickr.com/623/23593490180_0f353020e3_k.jpg Thank you for your reply. I'm going for the innovv k1 fancy the 46kam set up but £260. Plus space is a issue for me on my 600rr