still find a professional pump? Look here, our product will meet your need. It made of , which is more wear-resistant and durable for lasting use. Super compact and lightweight, perfect for size and weight for outdoor use. Features -Color: Black. -Material: Metal. -Size: About 12.00X8.00X5.20cm/4.72X3.14X2.04inch. - Made durable material, convenient and practical. - Hand-held design, easy to grip and use, with digital display design, it is easy to inflating. - Easy to carry, easy to use. Comes with LED lights and LCD digital display. - With fine workmanship, not easy to wear and tear, very practical in use. - Simple operation, suitable for cars, bicycles, balls, toys, fast inflation. Specifications: -Operating : 1-5A -Reverse charging with USB: 5V 1A -Input voltage: charger 5V, greater than 2A -Maximum : <=5A -No load : <=2A -Battery capacity: 4000mA -Noise decibel: 60-80dB -Charging mode: Micro USB -Pressure: 150 psi/ / 990 kpa / 10.3 10.5 kg/cm -Input voltage: charger 5V/2A -Can achieve: the pressure of 150 psi/ / 990 kpa / 10.3 10.5 KG/CM -Battery model: -Operating temperature: -20 degree centigrade -50 degree centigrade -Emergency lighting: 80LM 10 hours -Charging time: about 3 hours Package list: 1 x M8 air pump 1 x Inflatable tube 1 x Inflatable accessory connector 1 x USB charging cable