• One For All: A master pump that replaces all your inflation/deflation pumps.
• Inflates & Deflates: 9 pump modes to handle anything, anywhere.
• Speed: Inflate your air tent in just 60 seconds.
• Duo-Power Options: Use it corded for all-day work or go cordless with a powerful 7,500mAh battery.
• 9 Smart Presets: Automatically inflates and stops at the optimal pressure level.

Here is HOW TO USE / VIDEO INSTRUCTION for Air Pump Master