Vodafone Plantronics M25

Best buy

You don’t have to be on Vodafone to use this, but we can see why the company uses Plantronics hardware for its own-brand hands-free earpiece. As with Plantronics’ Marque 2 device, there’s a single volume button – you press this to cycle through eight profiles. Sound quality is great at this price, and we love the fact that the device is able to stream music from your phone. It also enables you to view the battery life as an icon at the top of your smartphone’s screen.