1. Long-distance tire inflation during tire changes 2. Built-in pump for inflation 3. Rechargeable for repeated use 4. Compact size for easy portability 5. Despite its small size, it boasts impressive power. Product name:Mini electric air pump Size:About 63.7x61.7x31 mm Weight:About 93g Battery capacity:7.4V*300mAh Charging method:Type-C 5V 1.5A Working hours:About 200s Chargeable air pressure:100Psi Stable battery life for worry-free riding Simple operation to quickly inflate an empty tire in a short amount of time Color:Black Material:plastic Package Contents: 1 * Electric Air Pump Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.