*The BH71's carrying case does not have a built-in battery.
BH71 can provide 10-hour talk time which is enough for all-day use. What's more, BH71
Pro and BH71 Workstation Pro have a portable charging case that can provide the
headset an extra 20-hour battery life of talk time. When you are not using the headset,
just put it in the case to charge it. The charging case can be used for one week and help
you fight till the last minute without power anxiety when on-the-go. (BH71 model offers a
carrying case without built-in battery)