As before with the Mono-series, you can run them on batteries and there's a loud speaker to annoy impress your friends with.

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Asda have introduced a loud speaker system called Space Hog around its disabled car park paces which goes off whenever someone parks in one of these spots.

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Along the bottom edge, you'll find the micro-USB port next to a single speaker that's pleasingly loud -- we only had to hit the middle settings for a decent playback volume.

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It's certainly effective, though, the surprisingly loud speaker has us crossing our fingers for a mute button in the final version.

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One of the biggest surprises, however, was the speaker phone, which was loud, clear and one of the best we've heard in a long time.

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