Video: Green gadgets at Consumer Electronics Show 2010

Bobbie Johnson takes Sanyo's new electric bike for a spin and wonders if electronics companies are as green as they claim to be Bobbie Johnson Hildegunn Soldal

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Video: Green gadgets at Consumer Electronics Show 2010

Technophile: Etymotic hf2 earphones

Even with custom-moulded eartips, Etymotic's hf2 earphones don't quite fit the bill I was sitting by the bar at Etymotic Research's press conference when the audiologist Andy Shiach took out his syringe and filled my ears with blue gunk. Then I sat still while it set, ignoring the rude comments from people I could barely hear. Later, the postman delivered a small package containing two very oddly shaped lumps of transparent silicone from Advanced Communication Solutions Limited (ACS), of which Shiach is the founder and managing director. These were custom-fit eartips (£90) for Etymotic's - hi-fi, hands-free - hf2 earphones (£99.95). The hf2s are for owners of the Apple iPhone, BlackBerry Curve and similar music phones, and have a microphone on the cord, so that they can be used as a headset. Not having one of those, I tried them with my Sony MP3 players instead. The hf2s come with four different types of eartip in the box, so that you can experiment to find the best fit. Etymotic's earphones must fit tightly inside your ear canal. This means that you can use a lower volume setting, which helps protect your hearing, and also cuts out external noise. The optional moulded tips should be perfect because they fit your ear exactly. However, it takes a bit of trial and error to figure out how to get them in

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Technophile: Etymotic hf2 earphones

Technophile: Aiptek Pocket Cinema V10

Size isn't everything when it comes to a compact projector that doesn't quite make the grade

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Technophile: Aiptek Pocket Cinema V10

Adam Vaughan on the wind-up MP3 player

The revamp of Trevor Baylis's wind-up MP3 player is more of an evolution than a full-blown Revolution

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Adam Vaughan on the wind-up MP3 player