3000mah, we are leading professional manufacturer of power bank with strict quality policy, more than 100 patent models for your choose, real capacity, 2 years warranty, free of charge to print your logo on them, high quality and best price. we would like to be your power bankcharger partner, create value for you, grow up together! we will be your the most suitable partner, why goldsun power bank?1.price will be most competitivebecause we are factory, the source of products, we can purchase better battery cell with lowest price because of our huge needs. 2.the quality is better, capacity is real, we have strict quality policy and comprehensive testing system to ensure high quality, we provide 1.5 years warranty.quality approvals include cefccrohs.etc.every product support over-charged, over-current, short circuit protection, safe to use. 3.the service we provide is the best, including one-stop service, odmoem service, 24hour service, customization service, we also can do custom-made housing for youit is free of charge to print your logo on them.because the cores of company is come from huawei, we learn the huawei service pattern(nanny service). 4. Strong r&d capability. We continuoursly develop the new items of power bank according to our product roadmap. More than 100 patent unique models for your choice. 5. More success storycases. More and more customers are choosing us as their partner, example, bu** company from america, ty** company from america, pa** company from india, st** company from brazil, ir** company from russia, huawei. 6. Trustworthiness, credibility and ethics. We always are sincere to establish long-term partnership with every our customers stead of just one-time deal. you can feel freeunworried to start double win cooperation with us, because we regard honestysinceritycredibility as first key factorfoundation.