Roberts Radio's latest model - the RD21 (Gemini 21) - sees a huge increase in life expectancy of batteries used to power the radio. Roberts claim a set will last around 150 hours - or around double that of the Pure Elan from Pure Digital.

The smart Roberts RD-21 features station naming on FM, so you can see the name of the station you are listening to on both DAB and FM wavebands.

There are ten presets on hand, with 5 direct-access keys plus a shift key and a handy line out socket if you'd prefer to connect the RD-21 to your main audio system.

The Roberts RD21 DAB/FM radio is available now at around GBP79.99.