Gadgets & Gizmos: Fitness trackers for dogs, electric baby buggies & manure-powered tractors

In our weekly gadgets show, Steve Caplin takes Simon Rose through some of the ideas coming out of the Consumer Electronics Show, including a 3D laptop, urine tester, fitness tracker for dogs, a completely wireless TV, a smellovision VR headset, an electric baby buggy and, from Cornwall, the first ever tractor to run on cow and pig manure. Learn more about your ad choices. Visit podcastchoices.com/adchoices