About Alvinlite Brand: Alvinlite is a household products brand with a history of more than ten years, focusing on providing high-quality household products with high cost performance to the public. May a happy life be with you！ Feature: 1. Multi‑functional air pump, mini compact, light weight, easy to carry, and can also inflate children's swimming rings. Specification: Item Type: Inflatable Pump Material: ABS, Aluminum Alloy Shell Weight: Approx. 203g / 7.2oz Power Supply: 3 x AA Batteries (Battery Not Included) Inflation Pressure: 0-12PSI Working Temperature: -15℃-60℃ Working Noise: 1 Meter <35dB Air Flow: 3.5L/Min How to use: 1. Insert the battery (not included) and insert the inflation tube 2. Push the switch key to the ON position 3. The air pump starts to inflate 4. After charging, push the switch to the OFF position and gently unplug the air pump tube Package List: 1 x Inflatable Pump (Battery Not Included) 3 x Inflatable Port 1 x Waterproof Bag 1 x Manual