This air pump is powered by a 4000mAh battery and offers 0.5 PSI air pressure. It comes in a compact and portable size and has an on/button for simple operation. The air pump flaunts a durable construction and is suitable for a wide variety of applications.

• 18650 3.7V 4000mAh battery.
• Air pressure (PSI) 0.5.
• On/button for simple operation.
• Compact and portable
• Durable construction
• Suitable for a wide variety of applications.