Elegant PU leather notepad with integrated, 3,000 mAh charging capacity external auxiliary battery. Including card holder, pen holder, and case for smartphone and/or other mobile devices. The easy access to the charging station via micro USB cable -included- makes this pad the perfect gadget for business and studying. 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. Size: 17.5 x 22.5 x 2.5cm | Weight: gr