Who doesn’t love a great pair of Bluetooth earphones? They’re light, discreet and less of a choking hazard. However, there’s more to a pair of Bluetooth earphones than the whole ‘being able to play music without an aux port’, and that’s what CrossCall’s new XPlay Bluetooth Earphones do their best to provide.

Long-distance running times are dropping – and the first sub-two hour marathon was completed recently by Kenyan athlete, Eliud Kipchoge. Some are arguing that innovations in trainer design are playing a pivotal role in these improvements. But what is the science behind these elite running shoes? Can they really make such a big difference? And can they get even better?