Range with the Q2 seems to be around 400-500m. The battery life seems very good considering the size of the unit and what it does- lasts around 5-6 hours, so you couldn't do Auckland to Wgtn with it (legally) without plugging it in at your lunch stop. Recharging time I can't say exactly but seems fast. Main body is small and detachable so I suppose if it was essential you could always carry a fully charged spare in your pocket.
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