Jabra Elite 7 Pro User Manual page 12

4.3 Charging the charging case
using USB
It takes up to 2 hours and 30 minutes to fully
charge the earbuds and the charging case
using a USB-C charging cable.
USB-C
The charging case uses the standard USB
voltage of 5V +- 0.25V. It is not recommended
to charge the earbuds using a power supply
with a higher voltage.
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