Of course, the lack of a boom for the mic means that the mic is further away from your mouth than on most other headsets. To compensate for this, Jabra has had to use more advanced noise-cancelling technology in the Stone. It reckons its new system is twice as good at blocking out background noise as that used on its previous headsets.
Like most noise-cancelling headsets, the Stone uses two mics. The one positioned on the front edge is used to pick up speech while the one on the rear records background ambient sounds. The feeds from these two mics are then processed by the internal DSP to cut out as much background noise as possible.
In use, it certainly does a good job of blocking consistent sounds such as engine noise in a car. However, when faced with a noisy café or shopping centre it’s less impressive. In these situations, callers reported that although it blocked much of the noise, it also made the audio on the call sound a bit metallic and overly processed with the result that speech wasn’t as intelligible as perhaps it should be. On the plus side, the earpiece does its job well producing loud and clean audio that makes callers easy to hear even in noisier environments where the Stone will cleverly automatically boost the volume.
There’s no doubting that the Stone is one of the most stylish and unobtrusive headsets on the market at the moment. However, we don’t like the way you have to carry the charging dock with you during the day and the lack of a boom mic means the noise-cancelling technology has to work harder and at times this affects call quality. At the end of the day, we think the Stone is a good buy for those who want a headset that’s as unobtrusive as possible, but if call quality and battery life are more important to you then something like the Aliph Jawbone Prime might be a better option.