This premium portable charger features advanced lithium-ion technology, enabling three extra full charges on-the-go. 

The fast charge feature provides up to six hours wear time in just 30 minutes, while the case can be fully recharged in just three hours.

Special features:

• 4 days on the go (3 times recharging)
• The size is optimized to acommodate:
  - devices with miniReceivers 3.0 length 0-4
  - miniReceivers 3.0 types S, M, and P