The compact multi-cable pocket battery always charged and ready to use. Ultra convenient, the Gamma 2 cable recharges at the same time as your smartphone (when it is plugged into the mains), allowing it to be used as a power bank with always available battery for end-of-day boosts! For the specs: Multi-cables Input: USB-C and USB Output: lightning, USB-C & Micro-USB External battery of 3000mAh Compatible with all types of devices (smartphone, wireless earphones, electronic cigarette...) Light charge indicator Product guaranteed for 2 years Marking made in France - NF71.3 certified inks The essential Gamma 2 has been redesigned with the aim of a less impactful approach for the environment