Impressively Portable You'd be hard pressed to find another 20,000mAh cell capacity portable charger with such a compact and portable design. USB-C Input and Output The USB-C port supports both input and output, so now you can charge your devices, and recharge your PowerCore at high speed. Comprehensive Protection Our MultiProtect safety system combines high-voltage protection, current regulation, temperature control, and more to keep you and your devices safe. Trickle-Charging Mode Provide safe and optimized charging to low-power devices such as Bluetooth earphones and speakers. Helpful LED Indicator The cool-blue LED displays remaining power and charging status. Just push the button to see how much power you have left. Tech Specs: Content: Anker 525 Power Bank (PowerCore 20K) Cable Quick Start Guide Model: A1287014 What's In The Box Anker 525 Power Bank (PowerCore 20K) Cable Quick Start Guide Tech Specs: Content: Anker 525 Power Bank (PowerCore 20K) Cable Quick Start Guide Model: A1287014 What's In The Box Anker 525 Power Bank (PowerCore 20K) Cable Quick Start Guide