The HyperGear 20,000mAh high-capacity Power Pack Pro provides up to 70 hours of extra life for your devices on the go. The USB-C Power Delivery port is PPS-compatible and powerful enough to charge the latest iPhone, iPad, and Android devices at super-fast speeds – and the 35W maximum output transforms this power bank into a portable full-speed charger for MacBook Air and other notebook laptops. This is laptop-level power in an ultra-slim, ultra-portable design that is smaller than most other phone-charging power banks.