2,200 mAh, external auxiliary battery in bicolor design. Its cylindrical rubber design and suction cups for attaching to the rear of the device make it a charging station with built-in support for all types of mobile devices. With micro USB cable and plastic front printing surface, especially recommended for pad printing. Presented in an attractive 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.