Advanced USB Charging: This air pump uses USB charging with a large built-in battery to deliver dependable cordless inflation with consistent efficiency across a range of tasks. Multifunctional Uses: Inflate and deflate in one device, with easy one-button function changes for efficient operation on air mattresses and other inflatables. Portable Inflating Helper: Designed to inflate mattresses, boats, and toys, supporting camping, beach outings, and various activities with a versatile, multi-use design. Intelligent Control: A digital display provides accurate monitoring for air mattress inflation, suitable for home or outdoor use while keeping handling secure and simple. Use scenarios: - At home: quickly inflate an air mattress for guests, guided by the digital display for accurate pressure, powered via USB. - Outdoor: on camping trips or beach days, inflate mattresses, boats, and inflatables, then deflate for easy packing. - On the go: use the one-button control to switch between inflate and deflate for fast setup and teardown of gear.