First there was the wind-up-radio - now Roberts is looking to the sun...

Portable radios are always at the forefront of the drive towards green, sustainable power sources – mainly because you’d need a team of racehorses on treadmills to generate sufficient eco-power for a super-size plasma screen or other hungrier gizmos.

Hot on the heels of the wind-up Freeplay radio comes Roberts’s solar DAB radio – a world first.

The portable has a solar panel stretching across the top of the unit, which supplies a built-in rechargeable battery.

Solar DAB radio - great for going green

More from Rob Waugh...
Turn us on...Creative's Vado, the latest EEE PC and the iLiad reader
22/07/08
The Box that Rocks: The Asus EEE Box Computer
16/07/08
Use the joypad, Luke: The new breathtaking Star Wars game
02/07/08
Full beam ahead: the first truly affordable projector
25/06/08
Speed dialler: We test-drive the Lamborghini mobile
19/06/08
Photography: Snap back in time with the perfect shot
04/06/08
Groove is in the art with high-end vinyl turntables
28/05/08
Back to Black: The new BlackBerry makes a big, Bold statement
28/05/08
VIEW FULL ARCHIVE

Sensibly, Yorkshire-based Roberts has ensured you needn’t rely entirely on good weather to power the device – you can top up the 27-hour battery from the mains, too.

Charging it via the sun will take about 12 to 16 hours in very strong sunlight – and it’ll charge even more slowly under cloud cover.

But in ideal summer conditions you should never need to resort to electricity for all-day listening – in theory at least.
Even if cloudy skies mean that you have to charge the SolarDAB from the mains, its eco credentials are solid – as it runs off rechargeable batteries, so won’t add to the 300 million batteries that Britons throw away every year.

Otherwise it’s a standard, solid Roberts radio. The sound is defiantly
mono, and the bass and volume are unlikely to start impromptu raves in
the park, but it’s perfectly fine for picnics or garden listening.

There are ten preset stations, a line- in socket for the iPod and other MP3 players, plus an LCD display that tells you the battery-charge level and the strength of the sunlight as you sit in the park praying for that cloud to get out of the way…

The SolarDAB costs ÂŁ79.90 and is available nationwide.robertsradio.co.uk