Although smartphones have advanced quite a bit over the past few years and have reached a point where some models are one and the same as a tablet in terms of size there`s one peripheral that follows suit in terms of technological advancement, Bluetooth wireless headsets. Of course instead of increasing their size (which would be quite easy actually) scientists around the world do their best to shrink those devices so they are easier to carry and use. However what i really enjoy is the latest trend which has many Bluetooth wireless headsets accompanied by carrying cases that double as portable battery packs providing enough juice for up to 5 full recharge cycles. Now this may sound as a bit overkill to some people (perhaps even useless) but such battery packs make it very simple for you to have a Bluetooth wireless headset in your backpack or in your cars glove compartment at all times without worrying that the battery may die out (once i left the Plantronics Voyager Legend UC in my backpack for 5 weeks and it still was full on battery when i used it). The STONE line of Bluetooth wireless headsets by Jabra dates back to 2009 and it was amongst the very first to feature a portable battery for recharging while on the road. Well 4 years later and after the launch of the quite successful STONE2 roughly 2 years ago Jabra is releasing the STONE3."