Most power banks in the market offer 10,000 up to 15,000mAh battery capacity...good enough to charge your usual smartphones. But you want more, don't you? CORE Power gives you a generous 26,800mAh! You can now charge your smartphones, tablets, cameras, speakers, drones, Bluetooth headsets, wearables, and all other USB devices. With two QC 3.0 USB ports, this power bank lets you charge 2 devices simultaneously at full speed and even 4x faster than standard chargers. No power is wasted thanks to the IntelliQ Smart Chip that detects the correct power flow for your device. Perfect for people on the go, it easily slips into any bag for reliable universal portable power at your fingertips.