Power Bank with capacity of 4400mAh, 5000mAh, 9000mAh & 10000mAh with metal finish. This model has slim design is portable in power banks also for branding we can do printing as well as engraving. So as per your logo we can do customization. Product with high quality, long lasting and durable that features protection against overloading, shocks and short-circuit. Compatible with smartphone and other electronic devices.