... 3. High quality and low price 4*18650 Coolook PB-2000 Mobile Power Bank Features• Great for cell phones, smart phones (iPhone, Galaxy ... , iPod, iPhone, iPad and so on. Specifications: •Brand: COOLOOK·Model:PB-2000• Battery Cell: Li-ion batteries (4*18650)(not included ... contact me if any more information needed) 4*18650 Coolook PB-2000 Mobile Power Bank