Display screen stand. With built-in lithium battery of great charging capacity -10.000 mAh-. Reinforced display with size 15x21.5cm, in acrylic transparent finish to insert posters. It provides charging via 4 USB outputs -2 micro USB cables included- and able to power supply up to 4 mobile devices at the same time. Due to its charging distribution technology, the built-in battery is able to continue to accumulate energy while supplying power to the connected mobile devices. Presented in an attractive and resistant design box. The capacities shown in all our external auxiliary batteries are real, all of them incorporating non-recycled, grade A batteries, with a service life of at least 500 charging cycles, and complying with CE regulations. In addition, they are manufactured according RoHS standards, and in compliance with the following safety requirements: Power bank overcharge protection system. Complete discharge protection system, which increases the durability of the power bank. Blocking system to prevent short circuits. Constant charging transfer system, in accordance with the capacity of the target device.