External auxiliary battery of 5,000 mAh with 5W wireless charging and Magsafe magnetic attachment, allowing the device to be used while charging. Made from ABS with a rubber finish. Compatible with devices equipped with Qi wireless charging technology. The capacities indicated for all our external auxiliary batteries are real, all incorporating A-grade batteries and not recycled, with a life cycle of at least 500 charging cycles and according to CE regulation. They are also manufactured in accordance with RoHS standards and comply with the following safety requirements: Power bank overload protection system. Full discharge protection system providing greater power bank durability. Locking system to avoid short circuits. Constant charge transfer system to match the capacity of the target device.