Features: Double screen to screen: Choose from a variety of inflating modes. Digital tire pressure monitoring, preset pressure charge to stop. Battery optional: Built-in 2*2000mAh rechargeable lithium batteries can be switched between 2000-2600mah. Low noise: Metal cylinder, reduce the use of heat body, while reducing noise. Built-in cooling fan: There is a row of cooling holes on the back to prevent high temperature of the inflator pump and prolong the service life. Large display: Large LED screen can clearly display the preset tire pressure value and the mode you choose. Equipped with 4 optional units, including PSI, BAR, KPA, Kg/cm2. Self-contained flashlight: Self-contained LED lighting, 7 hours emergency lighting, suitable for night emergency lighting. Small and portable: Compact size, does not take up extra space, convenient for you to carry when you go out. Suitable for various scenarios: Different tire pressure value units are built into the inflator for quick and easy inflation of car, bicycle, motorcycle tires, balls, swimming rings and other inflatable products. Specifications: Model: CQB20 Color: black Material: abs Display: HD LED color screen display Rated power: 60W Input voltage: 5V 2A No-load current: 2A Working noise: 60-75db distance 1m 60db Cylinder size: 15mm Maximum power: 3A Standby current: 50uA Inflation pressure range: 150PSI Motor working life: about 700 hours LED flashlight: 1W Barometric flow: 25 l\min Battery capacity: 2 x 2000mAh(optional 2000mah-2600mah) Battery charging time: approx. 3 hours Battery powered workable time: 25-30 minutes Current overcurrent protection: 10A Battery overcharge protection: 8.4V Battery over discharge protection: 6V Service life: 300-600H Product size: 125 * 71 * 46mm Product weight: 455g Package size: 14 * 11 * 6cm Package weight: 495g Package List: 1 * Air Compressor 1 * 160mm Air Hose 1 * Ball Needle 1 * Swim Ring Nozzle 1 * American Copper Nozzle 1 * USB Charging Cable 1 * Instruction Manual