► Digital display of tire pressure. ► Preset pressure, stop when charged. ► Small and portable, easy to carry. ► Powerful power, multi-purpose machine. It can satisfy the inflating force required by road bicycle and inflate common bicycle tires. ► There is no need to connect external power-supply when power-bank works. ► Inflate the ball without repeatedly pressing to check. ► LEDs lighting, to help you operate under the night. ► Micro-USB charging interface, compatible with most smartphone charging cables. ► Fully charged 8 road bike tires, restart speed can be filled with a tire in about 3 minutes. ► Full power can make up about 5 car tires. ► Filling speed about 6 minutes to fill a tire. Features: ► Charged to Preset Pressure And stopped：Inflating the ball, no need to repeatedly check by pressing. Accurately inflate and one time to reach the right pressure to help you enjoy the passion without worry. ► Digital Display To Detect Tire Pressure &Test tire pressure At Any Time To Avoid Emergencies: The temperature difference between the four seasons is large, and it is necessary to regularly check and adjust the tire pressure. Too low or too high a tire pressure can create a safety hazard. For example, the tire pressure caused by accidental tire running jogging is insufficient, and emergency inflation can help you get out of trouble. ► Powerful, Compatible With A Variety of Nozzles: The high-precision alloy die-casting cylinder can be easily pressurized to 150 psi to meet the aeration force required for road bikes, as well as to inflate common bicycle tires, football, car tire, Motorcycle tire, etc. ► Small & Convenient To carry out. Powerful, Compatible With A Variety Of Nozzles: Can be charged by a power bank. A wonderful journey is fully prepared, so riding & driving became easy and ready to go. Inflatable treasures do not require an external power supply when working. Small enough to carry with your car, it’s easy to put in your trunk or backpack. Motorcycle hikes are more free-dom. ► Built-in lithium battery. USB charging, LED lighting.