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The buttons on the Iqua 603 SUN make a good case for themselves, all having reassuringly precise click actions. On either the top or bottom, depending on whether you're a lefty or a righty are the two volume buttons. The front, or outside is in effect all one large button, with a status LED at the tip. This is held down to either power the headset on and off (with the status LED glowing blue or red respectively) and pressed to answer or hang-up on a call. Connecting the device to my iPhone (the only thing that it can do over Bluetooth) was a pleasingly simple affair - simply press and hold the volume buttons together until the LED flashes red and blue alternately, find the device on the phone, type the pin code (0000) and, as Steve Jobs would say: Boom! (Headshot? - ed.)
Once connected to your phone the Iqua functions just as expected. Talk time of 12 hours is claimed, which should be enough for anyone, even if it is an exaggeration. This talk time is apparently augmented by the solar panel, which trickles extra power to the device during use - assuming there's sufficient sunlight.
Audio quality is absolutely fine. Taking a quick scout around the TR office grounds Andy didn't have any problems understanding me, nor vice versa. Volume levels range from whisper quiet to deafeningly loud and should accommodate even the hard of hearing.
The microphone doesn't seem too prone to picking up ambient noise. Anyone you're calling from a car (the traditional home of the Bluetooth headset) is going to know you're doing so, but not to the extent that the only conversation you'll be able to have is "I'm driving, I'll call you back in a bit".
Rounding the package off, Iqua throws one other nifty attachment into the bundle, a lanyard. What makes this noteworthy is that, as well as allowing you to carry the headset around out of your pocket so as to keep it exposed to sunlight, it uses the same mini USB connector as the mains charger. It's a small thing but one that I, at least, thought was pretty cool.
When all's said and done the Iqua 603 SUN Bluetooth headset is just another average Bluetooth device at a reasonable price. The only thing it has to differentiate itself from the crowd is the addition of a solar panel allowing longer standby times. If you fancy helping your green credentials a bit by charging up less often, you know what to do.
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