This camera is ideal for people that want a camera that can easily be moved about. It has a powerful magnetic mount so the camera is unlikely to move even on the most uneven surface. Its built in battery will give a full days use and can easily be charged from a USB charging point. It can also accept a 12v charge from a switched mode power supply (not supplied). Its main use will be on farm vehicles where you need a camera to go on multiple trailers. We also see haulage companies keeping one spare just in case a lorry has its reversing camera fail. This would ensure they can still get on site. The camera operates by Wifi and there is an app to go on your tablet or phone. (note, some older generations of phone may have compatability issues). It has a good range so should work well from the back of a long vehicle. Our recommendation is you use this on a tablet rather than a phone - phones tend to have other apps running that may cause issues.