B7 Smart Electric Wireless Ball Air Pump With LED Display Features: 1. With intelligent pressure detection and stop function, just preset the correct ball PSI, press start, and it will automatically stop inflating once the preset pressure is reached. Smart and easy to use. 2. Built-in digital pressure gauge and LED display. 3. Portable and compact design, suitable for putting into your bag or even pocket. 4. Emergency lighting with SOS signal, convenient to use. 5. The ball pump is designed with a battery capacity of 2000 mAh Parameters: 1. Material: ABS+PC 2. Bare machine size: 146x42.4x35.6mm 3. Battery capacity: 2000 mAh 4. Charging time: 1 hour 5. Charging equal to: 5V 1A 6. Pressure: 20PSI max 7. Inflation efficiency: 70s (test condition: No. 5 football, from 0 to 9PSI) 8. Single charge durability: can be fully charged 100 footballs (test condition: No. 5 football, from 0 to 9PSI) Packing list: Air pump x 1 Air tube x 1 Charging cable x 1 Air nozzle x 1 Storage bag x 1