Features:*1. Compact, Portable, Handheld Inflator - Size: only 70x50x155mm(ST-5521); 80x45x135mm(ST-5522), mini tire inflators are designed for compact storage space in luggage, armrest storage boxes, and even glove boxes, allowing you to carry them with you in emergency situations.*2. Powerful Pump - 80W permanent magnet motor and enlarged pure copper cylinder turbocharge the tire inflation speed, it inflates a 195/65R15 tire to 30 psi in 8-9 minutes.*3. Multi-purpose Inflator - 4000mAh lithium battery allows USB/DC OUT power bank function and SOS flashlight when in emergencies.*4. Long Battery Life - Equipped with a large capacity battery, it supports the pump to inflate 4 car tires when fully charged.*5. Multifunctional Air Pump - Preset inflation modes and Auto Stop function help you inflate car tires, motorcycle tires, bicycle tires, and balls with high precision. Equipped with complete nozzle accessories to meet all needs.Description:*1. Material: ABS*2. Size: about 70x50x155mm(ST-5521); 80x45x135mm(ST-5522)*3. Battery Capacity: 2 series of lithium batteries*4. Display Screen: LCD display*5. Working Voltage: 7.4V*6. Rated Input: 5V/1A*7. Piston Diameter: 17mm*8. Rated Power: 80W*9. Working Temperature: -20 â~60 â*10. Pressure Range: 3-150PSI*11. Precision: ±1.5psi*12. Air Volume: 25L/min*13. Motor Speed: 30000 rpm*14. Continuous Working Time: 8-10 minutes*15. Battery Duration: about 30 minutes per charge*16. Charging time: 3-5 hours*17. Charging Interface: Type-C*18. Length of Air Tubing: 200mm ± 10mm*19. Length of Charging Cable: about 80mm*20. Net Weight: 465gPackage Includes:[ST-5522C Wireless] Tire Inflator * 1, Air Tubing * 1, Inflation Nozzle * 4, Type-C Charging Cable * 1, 12V Power Cable(3m) * 1, Instruction * 1[ST-5522B Wireless] Tire Inflator * 1, Air Tubing * 1, Inflation Nozzle * 4, Type-C Charging Cable * 1, 12V Power Cable(3m) * 1, Instruction * 1[ST-5522A Wired] Tire Inflator * 1, Air Tubing * 1, Inflation Nozzle * 4, 12V Power Cable(3m) * 1, Instruction * 1ABS